Yui Kodai

Yui Kodai is a student at U.A. High School training to become a Pro Hero.

Appearance
Yui has dark, shoulder-length, bob-shaped hair. She also has fair skin and an athletic build, with cerulean eyes and a neutral expression usually on her face.

Her Hero Costume consists of a simple cap on her head and a dark bodysuit with light patches on her chest, arms and legs. She wears elbow length gloves and a belt with a pouch on one side and a short skirt. She also has straps over her shoulders with pouches on either of them.

Personality
Yui is a quiet girl that rarely expresses any emotions. Some of her classmates consider her a kuudere. Despite her silent demeanor, Yui is shown to care for her classmates when they got knocked unconscious during the Forest Training Camp Arc.

Quirk and Abilities
Size (サイズ) Yui can make herself shrink to at least half of Kojiro Bondo's size. She can also make herself larger, as seen when she tries to scare off Shoto Todoroki and Katsuki Bakugo.

Trivia

 * Her name contains the kanji for "small" (小), "big" (大) and "ordinary" (唯).
 * Yui likes s.
 * The crest on Yui’s hat of her Hero Costume resembles . Ultraseven was known for changing in size, much like Yui’s Quirk.