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. She commonly refers to everyone with the honorific "-chan", save for teachers and other authority figures. Tsuyu's parents were always busy at work, requiring her to become the caretaker of her two younger siblings at a young age. Under these circumstances, Tsuyu grew into a highly mature person.