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. Since she is frog-like, when she is exposed to cold temperatures for too long, she goes into hibernation and is unable to function. Says RIBBIT sometime at the end of some sentences