Ichika is a high school student and a classmate of Rio, Ryou's little sister. She is annoyed by Ryou's one-sided feelings for her and she abuses him when he confesses his feelings for her, but she unconsciously gets attracted to him. She is an anime otaku and a fan of the character Toho from the anime Forward World.
Ichika Arima
有馬一花
Koi to Yobu ni wa Kimochi Warui
