Tamashiro

Tamashiro is mischievous, confident, rebellious, and strongly influenced by the collective attitude of his classmates. The Masegaki children possess unusually strong Quirks for their age and have grown accustomed to adults underestimating them, contributing to their belief that older people have little worth teaching them.

He initially joins the other children in mocking and challenging Katsuki Bakugou, Shoto Todoroki, Inasa Yoarashi, and Camie Utsushimi. Once the trainees stop trying to overpower the class and instead create something the children can enjoy together, Tamashiro's hostility fades.

His later appearances show that the experience leaves a lasting impression. Even when faith in heroes deteriorates across Japan, Tamashiro retains confidence in the young heroes he met during the remedial course.

Binging Ball allows Tamashiro to create small floating spheres with shark-like mouths. The creatures can fly independently and are capable of swallowing physical objects that come within reach.

During the remedial course, the Binging Balls are used against ice fragments and other material produced by the hero trainees, giving Tamashiro a convenient way to intercept projectiles or clear objects from his immediate surroundings.

Canon has not established an exact limit on how many balls he can create, how much each can consume, or whether swallowed material can be recovered afterward.

Tamashiro appears among the Masegaki children brought into the remedial Provisional Hero License Course as a test for students who failed the examination's second stage.

Gang Orca deliberately forbids the trainees from solving the situation through brute force. Their assignment is to win the children's trust, forcing them to demonstrate the communication skills and emotional awareness required of professional heroes.

Tamashiro and his classmates eventually respond positively when the trainees combine their Quirks into an elaborate playground, demonstrating that cooperation succeeds where scolding and intimidation did not.

During the Final War evacuation, Tamashiro remains convinced that Shoto, Katsuki, and the other heroes will succeed even while the adults around him fear the worst.

Komari Ikoma is Tamashiro's teacher and struggles constantly to control his class before the remedial course.

Gang Orca supervises the exercise designed to improve both the Masegaki children and the hero-license trainees.

Katsuki Bakugou, Shoto Todoroki, Inasa Yoarashi, and Camie Utsushimi are the four trainees tasked with winning Tamashiro and his classmates over.

Takuto, Sho, and Tamao are fellow Masegaki students shown alongside Tamashiro.