Quirk. Frog: Tsuyu's Quirk gives her the physiology of a frog, with her having the attributes of the creature as well as possessing several frog-like abilities. Tsuyu is a straightforward and aloof individual who always speaks bluntly from her mind and what she thinks about others. Tsuyu prefers to be called "Tsu", but only by people she views as friends.[1] She commonly refers to everyone with the honorific "-chan", save for teachers and other authority figures.