Hibiki Nanase

She is a beautiful older sister-type girl who is one year older than the main character.

She belongs to the same “Intellectual and Cultural Studies Club” as the main character. She established this club at the instigation of the main character and forced the main character to become the head of the club as it is. According to her, “This is my harem."

With her aloof personality, she plays with the main character by making numerous comments whose true meaning is hard to gauge. She has a large number of fans in the school because of her bewitching beauty and outstanding style, but according to her, “I'm only interested in younger girls."

Although she plays around with the main character, she is like an older sister who cares about him in some way.