Tsuyu Asui (蛙あ吹すい梅雨つゆ Asui Tsuyu) Tsuyu's birthday is February 12, Tsuyu is a short girl with a relatively thin complexion, compared to her classmates, who has especially large hands. Its appearance is quite similar to that of a frog; It has a very wide mouth, which sinks a little in the middle like that of a common frog, and oval eyes with large black irises, its lower eyelashes visibly pronounced, and it also shows some frog-like gestures.