Kinoko Komori/Synopsis

U.A. Sports Festival Arc
Kinoko participates in the U.A. Sports Festival for first-year students. She finishes the Obstacle Race at 34th place. She teams up with Itsuka Kendo, Reiko Yanagi, and Setsuna Tokage for the Cavalry Battle, but they don't get the necessary points to pass the event.

When they are given the opportunity for two members of their team to participate in the tournament, she doesn't object when Itsuka suggests for their team to allow Team Tetsutetsu to participate in the 1 vs. 1 battle in their place, because she considers that they deserve it more.

After this, Kinoko and her classmates watch the competition for the rest of the festival until it ends.

Forest Training Camp Arc
Kinoko is seen with Yui Kodai, Setsuna, Pony Tsunotori, and Reiko when Neito Monoma decides to taunt Class 1-A in an exaggerated manner. On their school trip, on the second day of the training camp, she listens along with the rest of her class as their homeroom teacher explains that they will be training their Quirks.

When Class 1-B arrives at the training camp, their homeroom teacher explains that they will be extending their Quirks and that the more they use their Quirks, the stronger they will be by breaking their limits. When Class 1-B witnesses Class 1-A's training, Itsuka asks Shota how they can observe everyone, and he explains that is the reason the Wild, Wild Pussycats are around.

Kinoko is placed in critical condition when Mustard and the Vanguard Action Squad attack.

Shie Hassaikai Arc
After the Provisional Hero License Exam, Class 1-B meets 1-A in the hallways, and Neito takes the opportunity to reveal that all 1-B students have passed the exam.

Joint Training Arc
Kinoko and the rest of Class 1-B show up for the Joint Training Battle, with Neito loudly claiming that the momentum is now moving to their side. Upon selecting teams, Kinoko is paired up with Itsuka Kendo, Shihai Kuroiro, and Manga Fukidashi to face Class 1-A team consisting of Momo Yaoyorozu, Fumikage Tokoyami, Toru Hagakure, and Yuga Aoyama in Round 2.

Before the round begins, Itsuka devises a strategy to defeat Class 1-A. Itsuka's first plan is to use Shihai to attack their rivals with Dark Shadow. If this fails, Itsuka predicts the others will use light. This will be the signal for Plan B. The light gives away Class 1-A's location, giving Manga and Kinoko the opening to barrage Class 1-A with their long-ranged Quirks.

After Shihai failed to capture Yuga, Kinoko started to use her Mushroom Quirk to spawn mushrooms everywhere. Using her spray bottles and Manga's quirk, the mushrooms begin to grow more rapidly. This not only gives Shihai more chances to hide but it also causes serious problems for Momo and her teammates by growing mushrooms all over their bodies. Taking advantage of the situation, Itsuka's team manages to isolate Momo from the rest of her team, and Shihai captures Yuga and eliminates him from the match.

While Momo faces Itsuka alone, she manages to create and send to Fumikage and Toru ethanol to get rid of the mushrooms. She also sends infrared goggles for Fumikage. Thanks to this device, Fumikage locates the position of Shihai and Kinoko and strikes them both with Black Abyss: Sabbath before they have time to react.

It seems that Fumikage has defeated the two students, but when he prepares to take them to jail, he starts coughing. Kinoko reveals that she can grow mushrooms inside a person's windpipe, although it's a skill she admits doesn't like to use. Because of this, Fumikage is captured and caged along with Yuga, and they are soon joined by Momo and Toru after they are captured by Itsuka, giving class 1-B the victory of that round.

With the match over, Kinoko apologizes to Fumikage and offers him a throat lozenge to help the pain caused by her mushrooms growing in his throat, but he refuses her pity. After this, Kinoko stays to watch the remaining rounds along with the rest of the students. The Joint Training Battle ends with victory for Class 1-A, and Kinoko cannot hide her displeasure that her class ended up being defeated.

Despite the fierce competition and the result, the exercise ends on good terms between both classes, and later Class 1-B visits Class 1-A's dormitories for socializing and dinner. Kinoko engages in a conversation with Fumikage, asking him for private pictures of Hawks.

Endeavor Agency Arc
With the start of the second Hero Works-Studies, Kinoko teams up with Shihai.

Paranormal Liberation War Arc
The months pass until it's late March. The Hero Public Safety Commission had uncovered the plans of Tomura Shigaraki and his organization, the Paranormal Liberation Front, and organize a large force of heroes to take the villains down.

Kinoko participates in raiding the Gunga Mountain Villa from the front lines, alongside several Pro Heroes, her classmate Juzo Honenuki, and Fumikage and Denki from Class 1-A. Kinoko is nervous and worried at the thought of attacking, asking if they really should be there. Kinoko is worried, Midnight explains that the students just be helping a little during the initial assault, after which they can retreat.

Finally, the heroes start the assault on the mansion. Members of the Paranormal Liberation Front are caught off guard due to this surprise attack, but many of them come out to face the heroes. It is in these moments when the students activate their Quirks to help the heroes. Kinoko uses her Mushroom Quirk to grow mushrooms both all over the bodies and in the throats of the foes, defeating a lot of them and giving the advantage to the heroes.

When their assistance is no longer needed. Fat Gum uses his Super Move Fataxi to carry Juzo, Kinoko, Denki, and Fumikage in his body, taking them away from the battlefield. However, when Fumikage sees his mentor Hawks in danger, he jumps out of Fat Gum's body and flies back. Fat Gum ejects Juzo, Kinoko, and Denki from his body and tells them to run the rest of the way before running off to stop Tsukuyomi.

Later, when Gigantomachia woke up, she was with the other students in the rear lines, when Momo Yaoyorozu starts making up the plan to take the giant down. The students each receive a vial of sedative from Momo and attempt to trap Machia and subdue him by throwing a vial into his mouth, with Eijiro eventually being the one to succeed. Heroes led by Majestic arrive to take over from the students, but Gigantomachia transforms and bulldozes his way through the heroes, with Majestic using his rings to get the students to safety, leaving the students horrified at the giant's rampage.

Tartarus Escapees Arc
When Izuku returns to U.A after going rogue, Kinoko overheard and listened to Ochaco Uraraka's speech.

Final War Arc
With the heroes' numbers dwindling rapidly, the remaining heroes prepares themselves for the Final War against the villains led by All For One. Shota Aizawa devises a plan that will lure All For One out into the open using Yuga Aoyama as bait. The plan has successfully lured All For One who summoned an army of villains at his disposal to overwhelm Izuku Midoriya and seize his prize, One For All. However, the heroes have been teleported to the deserted spot where Yuga and Izuku are, engaging the villains in a ferocious battle. Kinoko and several other members of Class 1-A and 1-B were teleported to the Gunga Mountain Ruins against All For One and his army of villains.