Habuko Mongoose

Habuko Mongoose (万偶数 羽生子) is a friend of Tsuyu Asui.

Appearance
Habuko has a snake-like head and large messy hair.

Habuko wore a sailor-like school uniform during her time at middle school.

Personality
Habuko considered herself to be treacherous and a disagreeable person; this perception of herself stemmed from her lack of self esteem caused by her loneliness. However, after becoming friends with Tsuyu, she became more sociable and friendly.

History
Two years ago before Izuku became a Yuuei student, Habuko was a student attending the same middle school as Tsuyu. During her time at middle school, Habuko started stalking her. Habuko often used her Quirk, which paralyzed for three seconds whoever she looked at, on Tsuyu. Despite this, Tsuyu wasn't bother by Habuko's stalking because she could understood 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.

Synopsis
A day after Yuuei's new year began, Habuko sent a message to Tsuyu, telling Tsuyu that she has made new friends at her high school and promises to introduce her new friends the next time they meet.

Quirk and Abilities
Unnamed Quirk: By staring at them, Mongoose can paralyze anyone for three seconds.

Tsuyu Asui
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.

Trivia

 * Habuko name comes from mongoose and habu.
 * Habuko's Quirk's ability is a reference to Medusa, Cockatrice, basilisk; all who have the ability to turn their victims to stone by looking at them.
 * Her Quirk also references the expression "蛇に睨まれた蛙", “a frog glared at by a snake”, which means to be paralyzed in fear.