Tsuyu Asui

Tsuyu Asui is a student at U.A. training to become a pro hero.

Appearance
Tsuyu is a short girl with a frog-like appearance. She has long, dark teal hair which she ties in a bow on her back. She has very wide eyes with pure black irises and distinctive lower eyelashes. Like a frog, she has a wide mouth and a very long tongue. She also has abnormally large hands.

Her Hero Costume is a green and black skintight suit with yellow linings which imitate a frog's skin markings. She also wears goggles, gloves, and boots with a frog-like design. Despite the fact that the boots are shaped like frog feet, she does have ten toes.

Personality
Tsuyu is a straightforward and laid-back individual who always says what's on her mind and what she thinks about others. She prefers to be called "Tsu" but has stated she only wants people she views as friends to refer to her as such. She commonly refers to everyone with the honorific "-chan". She has proven to be very observant, as she was the first to note the similarities between Izuku and All Might's Quirks.

Tsuyu is also noticeably calm and collected, being able to stay level headed in stressful situations. Recovery Girl describes her as the "perfect pillar of emotional support". Her usual expression consists of a vacant stare, which makes reading her thoughts and emotions difficult for those around her. Tsuyu has a habit of tipping her finger against her mouth while speaking or pondering. She also says "ribbit" as a replacement for many of her single word replies.

History
Before starting at U.A., Tsuyu's mother and father had to travel for work often, which left them with little time to raise their young children. Tsuyu was left with the responsibilities of raising Samidare and Satsuki, such as making dinner for them. Although it was tough raising her younger siblings, Tsuyu still found her life to be wonderful.

Two years ago before starting at U.A., Tsuyu's hero studies at her middle school piled up and didn't have free time for herself. Tsuyu's busy schedule, as well as her frog-like appearance, made it difficult for her to make friends. During her time at middle school, there was a student who started stalking her; her name was Habuko Mongoose who also had difficulty making friends. Habuko often used her Quirk, which paralyzed for three seconds whoever she looked at, on Tsuyu. Despite this, Tsuyu wasn't bothered by Habuko's stalking, because she could understand her, since they were both lonely.

One day, Tsuyu mustered up the courage and asked Habuko to be friends. Habuko was touched by Tsuyu's kindness and agreed to be friends with Tsuyu. Eventually, Tsuyu and Habuko graduated from their middle school, but went to different high schools.

Two years later, the day after U.A.'s semester began, Tsuyu receives a message from Habuko which states that she made new friends at her new high school and next time she will introduce them to her. Even though they ended up going to different high schools, Tsuyu notes that she will always be friends with Habuko. Tsuyu decides that, like Habuko, she will make lots of friends at her new high school as well.

Quirk Apprehension Test Arc
Tsuyu first appears alongside the rest of Class 1-A on the first day of the term. Shortly after the start of class, Class 1-A is brought to the exercise grounds by their homeroom teacher: Shota Aizawa. He informs the class that they must all undertake a Quirk Apprehension Test and whoever comes in last place will be expelled immediately.

When Tsuyu takes part in the 50 meter dash, she races against Tenya Iida, who finishes before her due to the speed of his Engine Quirk. She finishes the race in 5.58 seconds and eventually places thirteenth overall in the class.

Battle Trial Arc
Tsuyu is paired with Fumikage Tokoyami for the combat training. After the first battle trial, All Might grants Tenya Iida the most valuable honors. Tsuyu questions this since Izuku Midoriya and Ochaco Uraraka were the victors. Momo Yaoyorozu explains why. Once training finishes, All Might gives the class some positive reinforcement. Tsuyu thanks him for this because she feels like their homeroom teacher is quite the opposite of positive. When Izuku returns to class from the nurse's office, Tsuyu introduces herself to him as "Tsu".

Unforeseen Simulation Joint Arc
While deciding who should be class president, Tsuyu mentions that Tenya's voting system may not work since the class hasn't known each other long enough. She votes for herself to be president but Izuku and Momo end up winning the honors. Later on, Shota announces to the Class that they will partake in rescue training at an outside facility. Tsuyu mentions to Eijiro Kirishima that she's excited to show off her skills in the water. Tsuyu receives her hero costume and chooses to leave her goggles behind and boards the bus.

During the bus trip to the outside facility, Tsuyu tells Izuku that his Quirk reminds her of All Might. However, Eijiro argues that Izuku's Quirk injures him while All Might's does not. Eijiro goes on to say that Katsuki Bakugo and Shoto Todoroki have the most pro-worthy Quirks. Tsuyu replies that Katsuki's too angry to become a popular pro, causing him to yell at her and prove her point.

Class 1-A arrives at the Unforeseen Simulation Joint, where they meet the Space Hero: Thirteen. Thirteen explains she developed the U.S.J with the focus on training future heroes on using their Quirks to help others. Suddenly during Thirteen's speech, real villains invade the facility through a warp gate.

Shota fends off the villains on his own and leaves Thirteen to evacuate with the class. They prepare to escape, but they are cut off by the villain Kurogiri. Katsuki and Eijiro attack him, but end up dealing no damage. Kurogiri responds by warping the class to the various areas in the U.S.J.

Tsuyu, Izuku and Minoru Mineta are warped to the shipwreck zone where they are met by villains. Izuku is nearly killed by a fish-like villain underwater, but Tsuyu rescues him by kicking the assailant in the face. She uses her quick swimming skills and her tongue to swiftly bring Izuku and Minoru out of the water an onto the boat. Izuku thanks her for saving his life and she reminds him again to call her "Tsu". They discuss the villain's plans and Minoru mentions that the villains can't kill All Might. Tsuyu argues that the villains likely have a plan in mind and that they need to focus on surviving. The villains in the water start rushing towards the ship. Minoru panics, but Izuku encourages his allies to be heroes because it's up to them to save All Might now.

Tsuyu and Izuku deduce that the villains must've collected information on the U.S.J and gathered villains who would have advantages there. However, they also figure out that the villains likely have no idea what the student's Quirk and skills are. While Tsu and her allies strategize and share information on their Quirks, one of the villains uses an aquatic Quirk to cut the ship in half. Minoru starts freaking out as the ship sinks and Tsuyu questions whether the hero track is right for him. Izuku remains clam and creates a plan for them to escape.

Izuku jumps from the ship and uses a Delaware Smash on the water to create a giant shockwave. On his signal, Tsuyu grabs Minoru and jumps from the ship. She grabs Izuku with her tongue while Minoru uses throws sticky spheres from his Quirk at the villains. The aftermath of the shockwave causes the water to rush back to the middle, trapping the villains there because of Minoru's Quirk. As they escape the shipwreck zone, Tsuyu commends her allies by telling them they did an amazing job.

As they leave the water, Tsuyu asks Izuku to stop muttering and second-guessing their plan. At first, they agree to escape towards the exit, but Izuku decides they should help Shota against the group of villains in the central plaza. They soon arrive there to find Shota facing off with Tomura Shigaraki, the villain's ringleader. Exhausted from fighting, Shota ends up at the mercy of Tomura and his super-powerful ally: Nomu. Tsuyu, Izuku and Minoru watch in horror, but they notice Kurogiri tell Tomura one of the students escaped. They assume the villains plan to escape, but Tsuyu admits she has a sour feeling about this.

Just then, Tomura suddenly decides to attack the group and nearly destroys Tsu's face. Shota uses his Quirk in time to stop Tomura. Izuku uses the opening to attack Tomura in order to save Tsu, but his smash attack is nullified by Nomu's swift defense of Tomura. Nomu attacks Izuku and Tsu moves to save him, but they are all rescued by the arrival of All Might.

All Might grab Shota and entrusts his unconscious body to the students. Tsuyu, Minoru and Izuku carry him towards the exit until Izuku rushes back to support All Might. Following the battle with the League of Villains, Class 1-A meets up outside the facility and are debrief by Detective Tsukauchi. Yuga Aoyama tells Tsuyu it's a secret where he got warped to. She ignores him and asks the detective about the condition of Shota and Thirteen.

U.A. Sports Festival Arc
Tsuyu is seen walking out to the event with her class. During the Obstacle Race, Tsuyu manages to avoid Shoto Todoroki's ice and proceeds onwards to the Fall where she begins walking on the tightrope. She eventually manages to finish the Obstacle Race, placing 13th, allowing her to participate in the next event, the Human Cavalry Battle. Tsuyu teams up with Mezo Shoji and Minoru for the Human Cavalry Battle. When the event begins, Tsuyu is on Mezo's back hiding behind his tentacles and uses her tongue to try and grab Izuku and Tetsutetsu's headbands, nearly succeeding but ultimately failing to do so. Tsuyu states that she expected no less from Izuku. Tsuyu along with her teammates are electrocuted by Denki Kaminari's electricity, stunning them. Shoto then freezes Mezo's legs, stopping him in his tracks. After the Human Cavalry Battle ends, Tsuyu and her team fail to qualify for the final event. Tsuyu states that it sucks to lose but congratulates Mina Ashido for qualifying.

After Denki and Minoru state that the girls must do the cheering battle as per orders from their homeroom teacher, Tsuyu and the other girls of Class 1-A walk out in cheer leading outfits. However, as Tsuyu and the girls walk out, they realize they have been tricked. After seeing Toru cheering, Tsuyu says that she actually likes cheer leading. During the recreational events, Tsuyu is seen cheer leading. Before the fight between Ochaco and Katsuki begins, Tsuyu comments that this will be the match that will be the most upsetting. After Shoto defeats Izuku, Tsuyu along with Ochaco, Tenya and Minoru go to Recovery Girl's office to see Izuku. However, Tsuyu is forced to leave as Recovery Girl states that Izuku is going to undergo surgery.

Tsuyu along with her class watches the closing ceremony of U.A.'s Sports Festival.

Vs. Hero Killer Arc
Two days after the Sports Festival, Tsuyu is in class. After her homeroom teacher Shota arrives in class, Tsuyu comments on his injuries having healed. During the Hero Informatics period, Class 1-A has to decide on Hero Names. Tsuyu writes down and presents to her classmates her Hero Name, noting that she chose it in elementary school: Rainy Season Hero "Froppy" (梅雨入りヒーローフロッピ). Nemuri Kayama comments on the name's friendly feel and instructs Tsuyu's classmates to use her name as a model. Tsuyu presenting her Hero Name changes the mood of the class.

After Class 1-A is finished formulating their Hero Names, Tsuyu is given a list of 40 work places in order to choose a workplace that she wants to train at. Minoru states that he wants his work place to be with Mount Lady, causing Tsuyu to think that he is having unclean thoughts, which Minoru denies. On the day of the workplace training, Tsuyu is at the train station with her class so that she can travel to the work place of her choice by train.

Tsuyu decides to work with the hero Selkie. She defeats an attack by the villain Innsmouth and his men.

The workplace training ends and Tsuyu returns to U.A.

After Foundational Hero Studies is finished, Tsuyu is in the girls' locker room and changes into her school uniform.

Final Exams Arc
One week before the end of term test, Tsuyu sits in the lunch room at a table with Izuku, Shoto, Tenya, Toru, and Ochaco, where they discuss what they exercise test will be. On the day of the exercise test, Nezu reveals that Class 1-A will be fighting against U.A.'s teachers for their exercise test. Tsuyu is paired with Fumikage Tokoyami and they must face Ectoplasm in their test exercise. Fumikage, Tsuyu, and Ectoplasm arrive in an uninhabited city where Class 1-A's test exercise will take place. In one of the city,'s buildings, Ectoplasm explains the 30 minute test; Fumikage and Tsuyu must either handcuff him or one of them must escape the battlefield within 30 minutes in order to win and pass the test. Tsuyu tells Fumikage that Ectoplasm must be ambushing their designated exit. The test begins; Ectoplasm multiplies and creates four clones of himself that surround Fumikage and Tsuyu. Seeing that they are at a disadvantage, Fumikage orders Dark Shadow to throw Tsuyu onto the next floor which it does. Tsuyu grabs Fumikage with her long tongue and throws him onto the next floor as well. Ectoplasm comments on their nice synergy.

The fight between Fumikage and Tsuyu against Ectoplasm continues with Fumikage being overwhelmed by the sheer number of Ectoplasm's clones. Suddenly, one of Ectoplasm's clones appear before Fumikage. However, Tsuyu smacks it away with her tongue. Fumikage and Tsuyu manage to make it past Ectoplasm's clones and reach the vicinity of the escape gate where the real Ectoplasm is waiting. Ectoplasm compliments the duo for outrunning his clones, but asks them if they can deal with his next attack. Ectoplasm uses Forced Internment Giant Bites, a move that creates a giant clone of himself. Fumikage and Tsuyu are unable to escape and the giant clone munches them which traps Fumikage and Tsuyu in its ectoplasm. Unable to do anything, Fumikage orders Dark Shadow to escape as it is now the only way they can obtain victory. Dark Shadow proceeds to the escape gate but Ectoplasm kicks Dark Shadow away. Tsuyu comes up with a plan and decides to regurgitate something, telling Fumikage to not look so that Ectoplasm does not notice them. Dark Shadow struggles against Ectoplasm. Fumikage recalls Dark Shadow to collect the item Tsuyu has; Dark Shadow collects the item and goes back to fight Ectoplasm. Dark Shadow attacks Ectoplasm with its claw while Ectoplasm blocks it with his kick. However, Ectoplasm's leg is chained by a handcuff; Tsuyu explains that she regurgitated a handcuff since her stomach can store and eject objects and gave it to Dark Shadow so that it could handcuff Ectoplasm with its claw. As a result of Ectoplasm being handcuffed by Fumikage and Tsuyu's last desperate team strategy, they pass the practical exam.

Back in class at U.A., Tsuyu learns that she passed the written test and will go with her classmates to the forest lodge which is a boot camp. Tsuyu along with his class go to Kiyashi Ward Shopping Mall to buy necessities for the forest lodge.

School Trip Arc
The next day after the shopping trip, at U.A., Shota informs Class 1-A that the destination for their lodge trip has been changed and the newhich is a part of their domain; they have three hours to reach the base of the mountain using their Quirks as they please and those who don't arrive there by 12:30 pm won't be served lunch. Soon, Class 1-A realize that they have already arrived at their destination and their training camp has already begun with The Pussycats being their supervisors. Some of Class 1-A try to leave, but Pixiebob uses her Quirk to create a landslide of dirt that causes Class 1-A to fall into a forest called Forest of Magic Beasts, which they must traverse to reach their destination. Suddenly, Class 1-A are confronted by a beast; Koji tries using his Quirk to control the beast but it does not work due to the beast being made out of dirt. Izuku, Shoto, Tenya, and Katsuki mobilize and use their Quirks to destroy the dirt beast.

After Izuku, Tenya, Shoto, and Katsuki destroy the dirt beast, Class 1-A begins traversing the Forest of Magic Beasts. The journey through the forest to the Cabin takes around eight hours. Class 1-A arrive at the facility, battered and tired. It is now 5:20 pm in the evening. Pixiebob admits that she thought they would take longer to get to the facility; she praises Class 1-A for figuring out her Earth Beasts quickly and easily.

Class 1-A fetch their luggage from the bus and put it in their rooms. Class 1-A go to the dining hall to have dinner. After finishing eating dinner, Class 1-A go to the hot springs. The next day at 5:30 AM, Class 1-A are outside the training camp cabin. Shota greets his students and tells them that they will undergo reinforcement training to strengthen and upgrade their Quirks which will also allow Class 1-A to obtain their temporary licenses.

When Shota authorizes Classes 1-A and 1-B to fight back against the villains, Tsuyu and Ochaco are already facing Himiko Toga.

A few moments earlier before the Bakugo Escort Squad was formed, Tsuyu and Ochaco are fighting Himiko Toga who managed to slightly wound Ochaco’s arm. Himiko notes that her Quirk requires her to make big wounds in order to suck her targets’ blood. However, thanks to her machine, her Quirk’s weakness is compensated by the machine’s ability to drain blood from tiny wounds. Himiko begins to attack, to which Tsuyu responds to by flinging Ochaco away with her tongue. Tsuyu tells Ochaco to run back to the facility and call for help and says that she also plans on retreating with her. Suddenly, Himiko manages to wound Tsuyu’s tongue with one of her knives. Tsuyu tries running away, only for Himiko to pin her hair to a tree with her machine. Himiko prepares to drain Tsuyu’s blood, however, Ochaco arrives to Tsuyu’s aid which causes Himiko to turn her attention to Ochaco. Himiko attacks with her knife, only for Ochaco to dodge. Ochaco uses the martial arts skills she learned from Gunhead to apprehend Himiko.

With Himiko on the ground and apprehended, Ochaco tells Tsuyu to restrain her arms. Himiko notes that love stories are fun and uses her machine to stab Ochaco’s leg, who was unable to stop her due to being caught off guard with Himiko’s talking. Himiko begins draining Ochaco’s blood.

Suddenly, the Bakugo Escort Team arrives and sees Ochaco. Himiko stops draining Ochaco’s blood and pushes Ochaco aside, not wanting to engage a large group of enemies and not wanting to die. Himiko retreats with Ochaco wanting to follow her, but Tsuyu stops her due to Himiko’s Quirk being largely unknown. After seeing that Ochaco and Tsuyu are alright, Izuku asks them to join the escort. However, Ochaco and Tsuyu wonder why Katsuki isn’t with them. Mezo, Shoto and Izuku turn around only to find that Fumikage and Katsuki are missing.

Suddenly, a masked villain appears on a tree branch and reveals that he used his “magic” to take Katsuki by turning him into a marble. The masked magician-like villain states that the Heroes don’t deserve someone of Katsuki’s caliber and notes that Katsuki will shine even brighter on the villains' side. Izuku demands that he give Katsuki back.

Tsuyu helps Izuku, Mezo and Shoto by throwing their weightless bodies at Mr. Compress which allows them to reach him. Tsuyu and Ochaco run to the villains' rendezvous point, only to find out that the villains' succeeded in capturing Katsuki.

Two days afterwards, Tsuyu visits Izuku in hospital. She berates Izuku and the other for wanting to break into the villains hideout.

Hideout Raid Arc
Tsuyu watches the broadcast of the battle between All Might and Sensei.

Hero License Exam Arc
Tsuya manages mend her friendship with the other students. She manages to pass the exam.

Internship Arc
Tsuyu is revealed to be doing an internship with Ryukyu along with Ochaco. They defeat a villain together and use a new combo move called Meteor Fafrotskies. Nejire recommended them to Ryukyu and she accept. Nejire then tells her, that both of them were turned down by the field training teachers. Ryukyu then tells them that the internship will help with their fighting skills and that they might help with "The Case". The Case is to team up with Sir Nighteye's hero office for an investigation.

Quirk and Abilities
Frog-Form (蛙 Kaeru): Tsuyu's Quirk allows her to do anything a frog can do such as:
 * Hopping long distances
 * Jumping
 * Sticking to walls
 * Extending her tongue to a maximum of 20 meters and can lift a persons entire body.
 * Ejecting/washing her stomach and secreting toxic sticky liquid (which is a bit sharp on the tongue)
 * Camouflage.

Equipment

 * Camouflage costume: Tsuyu's hero costume changes colors along with her, blending in with her surroundings when she uses her Camouflage ability.

Battles
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Unforeseen Simulation Joint Arc

 * Izuku Midoriya, Tsuyu Asui & Minoru Mineta vs. Villains: Win

Vs. Hero Killer Arc

 * Tsuyu Asui vs. Innsmouth: Win

Final Exams Arc

 * Fumikage Tokoyami & Tsuyu Asui vs. Ectoplasm: Win

School Trip Arc
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 * Ochaco Uraraka & Tsuyu Asui vs. Himiko Toga: Undecided

Habuko Mongoose
Habuko was a student who attended the same middle school as Tsuyu and was the first friend Tsuyu made. They had many similarities to each other; having strange appearances that made it difficult for them to make friends and they were lonely individuals as a result. Often, Habuko would stalk Tsuyu but not with ill-intent. Tsuyu did not mind this because she understood Habuko's loneliness resulting from her appearance. Eventually, Tsuyu asked to be friends with Habuko. Touched by her kindness, Habuko agreed to be friends with her. They graduated from middle school together, but went to different high schools. Even though they are at different high schools, Tsuyu and Habuko never stopped being friends with one another as shown when Habuko sent her a message and Tsuyu herself notes that Habuko will always be her friend; their friendship became a catalyst that helped them socialize more and make new friends from their respective high schools.

Izuku Midoriya
Tsuyu respects Izuku for his heroic actions as well as his victory against Katsuki. During the Rescue Trial Arc, she was receptive of Izuku's plan to subdue the swimming villains, showing not only respect, but also trust. Tsuyu went to see how Izuku was doing after his battle with Shoto.

Interestingly, Tsuyu repeatedly tells Izuku to call her "Tsuyu" rather early on in their knowing of each other. He appeared to be the first person she was fine calling her by her first name, repeatedly reminding him to call her that. Considering Tsuyu has gone on to say she only wants people she considers, or wants to be a friend to call her that, it is clear that Tsuyu views Izuku as such. While Izuku seems to call her "Asui" more often than not, due to his polite personality, he has called her Tsuyu on occasion, and shown concern for her, showing he views Tsuyu in the same light.

Minoru Mineta
Tsuyu is frequently seen together with Minoru, although she constantly punishes him for perverted behavior or insensitive comments. Tsuyu most often hits Minoru with her tongue. However, the two seem to be on friendly terms, to a degree.

Mina Ashido
The two girls are friends, as they are often seen talking to each other. Tsuyu congratulated Mina for making it to the tournament even though she was angry about her own failure.

Fumikage Tokoyami
Although their interactions in the classroom have been minimal, Tsuyu has been paired with Fumikage a number of times. They worked together during the battle trial and the practical section of their final exams.

Tsuyu and Fumikage agreed to strategize prior to their practical exam, showing they had strong communication with one another. During their test against Ectoplasm, Fumikage and Tsuyu displayed elite synergy and teamwork. Their Quirks work very well together in both evasive and combat situations. Tsuyu provided support while Fumikage did the bulk of the fighting. Although they were overwhelmed by Ectoplasm, Tsuyu believed they would be fine because Fumikage is strong. Together they managed to pass their finals.

Ochaco Uraraka and Nejire Hado
Nejire helped Ochaco and Tsuyu get an internship with Ryukyu. The three established a friendship with each other since Ochaco and Tsuyu listened and cooperated with Nejire splendidly during their internship, as well as when Ochaco and Tsuyu fought against Himiko Toga.

Tsuyu and Ochaco appear to be great friends, as they are on a first name basis with each other. During the School Trip Arc, Tsuyu comforts Ochaco by offering to hold her hand, which Ochaco accepts.

Sirius
Tsuyu and Sirius get along very well and they trained alongside in the internship. Sirius taught Tsuyu the importance of becoming a hero and agreed that she will become a great hero one day.

Himiko Toga
Tsuyu and Himiko are enemies. Tsuyu greatly dislikes Himiko for attacking her and Ochaco and considers her to be crazy. Despite Himiko's attempts to befriend her, Tsuyu reacted with displeasure, especially when Himiko called her by her first name, since that's something only her friends are allowed to do.

Trivia

 * Tsuyu's preliminary design was less frog-like and more human in appearance, with smaller eyes and mouth. She was also supposed to be more downbeat.
 * Tsuyu was also originally conceived as a male character but was turned into a female because the class lacked girls at the time. She shares this aspect with Toru Hagakure.
 * Tsuyu's known U.A. data is as follows:
 * Student No. 3 in Class 1-A.
 * Ranked 13th during the Quirk Apprehension Test.
 * Ranked 6th in Class 1-A's Grades.
 * Ranked in the Top 42 of the U.A. Sports Festival First-Year Stage.
 * Tsuyu's rankings in the Popularity Polls are as follows:
 * Tsuyu ranked 6th in the First Popularity Poll.
 * Tsuyu ranked 9th in the Second Popularity Poll.
 * Tsuyu is ranked 2nd in the First US Popularity Poll
 * Her name contains the kanji for frog (蛙), puff (吹), and Japan's rainy and humid climate (梅雨), the latter which is the climate during the toad's egg-laying season.
 * Tsuyu is fond of rain and jelly.
 * A mugshot of Chika Amatori from World Trigger used by Ōji Unit, first seen in chapter 151, bears a striking resemblance to Tsuyu.
 * Additionally, Tsuyu's birthday is a day after Chika's (February 11), both have the kanji for rain (雨) in their names, and both seem to be related to frogs (in World Trigger's system, Chika's zodiac sign is Rana, the frog).

Quotes

 * (To her classmates regarding the rescue mission for Katsuki Bakugo) "It doesn't matter how righteous our feelings are. If we start another fight...if we break the law...then we're no better than the villains!"
 * (To Himiko Toga regarding being called by her first name) "Cut it out! Only people who are my friends can call me that!"

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Tsuyu Asui