Tsukasa Koiso

A student in Class 3-2 during the second season, this character enjoys the latest gossip and holds a strong admiration for her classmate Himeko Tachibana. She possesses a rather superficial understanding of sexuality and forms close bonds with Masumi Yada, Ai Tsuchiya, and Toshimi Shibaya, often leading to lively and noisy group interactions when they gather.