Age: 18 Height: 160 cm (5'3") Weight: 104 Hair: She has shoulder-length black bobbed hair, side-swept to the right with shorter strands above her eyes.  Eyes: Her eyes are slightly narrow and cerulean blue, often described as emotionless or blank. Facial Expression: She maintains a perpetually neutral expression, contributing to her "poker-faced" reputation.  Skin: fair complexion Build: athletic Hero Costume: red bodysuit with white trim and a "V" pattern across the chest. A short white skirt and white vambraces with yellow accents. A sun visor-style hat with a fin-like crest, reinforcing the "giant hero" motif. Storage pouches on shoulders and waist to carry shrunken items for her Quirk.  Personality Traits: Yui is known for her quiet, reserved nature, but her personality is more nuanced than it first appears. Taciturn and Reserved: She rarely speaks, often communicating with simple sounds like “n,” “mm,” or “nnn!” Calm and Composed, Displays nerves of steel, rarely flustered even in tense situations. Supportive and Caring: Despite her silence, she cares deeply for her classmates. as seen when she looked after Juzo Honenuki and Ibara Shiozaki during the Forest Training Camp. Unaware of Kuudere Perception Popularity: Was unaware of a middle school fan club and remains indifferent to her status as one of the most popular girls in the Hero Course.  Quirky Enthusiasms: Shows rare excitement by exclaiming “MM!” when eating her favorite foodtomatoes.  Dislikes Neito Monoma: Treats Neito Monoma with cold indifference.