Sumire Usuta

Height: 160 cm
Group: 777☆SISTERS
Sub Unit: SiSH, SU♡SUTA

A girl with a "gal" style who grew up in an ordinary household.

However, contrary to her appearance and way of speaking, she is actually kind-hearted and skilled at cooking. She used to spend her days listlessly, but she begins to change little by little after meeting the Manager, Coney, and the members of Nanastar.

Her catchphrase is "Imiwaka" (meaning "I don't get it" or "It makes no sense").