Yoshiko Tanuma

Yoshiko Tanuma (田沼 佳子) is Kasumi Takamiya's closest friend.

Personality
Like other students, she has fear towards "Princess" Ayaka Kagari and "Bear Killer" Rinon Otometachibana.

Kasumi Takamiya
Yoshiko is Kasumi's closest friend, this was proven by her being care about Kasumi's brother complex and supports her as well, she eventually called Kasumi's mother as "Mama-san" and bothered to know that Honoka and Ayaka are engaged.