Ajimu Yasuna  

, 安心院保奈

Ajimu Yasuna is a character in this story who resided in Tokyo until recently when she began attending the same high school as Suzue. She enjoys music, history, and Japanese language which led to her composing and playing her own songs as a side job at J.O.D., where she plays Hawaiian music on her ukulele twice a week. Initially, Yasuna misunderstands Hirosuke for a molester before considering him a stalker when he tries to clear up the confusion. Eventually, they form a friendship. Despite this, Yasuna is still struggling to move on from the death of her former boyfriend Otomine Yuuma.