Tsuyu is a short girl of a relatively slender build and has notably large hands. Her appearance is rather frog-like; she has a wide mouth, which dips down a little in the middle just like a common frog, and oval-shaped eyes with large, black irises, their lower eyelashes visibly pronounced. Tsuyu is straightforward and aloof, speaking bluntly from her mind and freely expressing what she thinks about others. Tsuyu prefers to be called "Tsu", but only by people she views as friends.