Toru Fujisaki, nicknamed "Jimi" or "Jimmy" for his plain look, is a first-year student at Morimori Academy. He possesses messy dark hair with a greenish hue, teal green eyes, and thick eyebrows. His body bears two visible scars: one on his forehead from a childhood fall off a balcony, and another on his right thigh from a self-inflicted knife wound. Fujisaki struggles with depression and self-harm tendencies. His story begins during a suicide attempt on the school rooftop, where Ayato Yuri intervenes, preventing his fall and giving him a dorm room key. This act ignites an intense fixation on Yuri in Fujisaki, leading to obsessive stalking behavior. He steals Yuri's personal belongings, including underwear, and sends him love letters. Confronted by the Yarichan Bitch Club about the stalking, Fujisaki confesses his feelings for Yuri. Yuri remains largely indifferent to the stalking but gradually engages with Fujisaki. Their interactions develop into occasional romantic and sexual encounters outside of school. Yuri assigns him the nickname "Jimmy" and shows sporadic concern, such as when Fujisaki is injured during a summer school trip. Later, during another stalking incident, Yuri confronts Fujisaki in his room and reciprocates his feelings after a renewed confession. Fujisaki's personality is marked by extreme shyness, especially around Yuri, often causing stammering, blushing, and nosebleeds. He views himself as uninteresting and socially inept, contributing to his lack of friendships. Despite initial rejection and being called "boring" by Yuri, Fujisaki persistently expresses his emotions, shifting tactics from covert stalking to direct appeals for acknowledgment. He navigates a complex relationship dynamic where Yuri alternates between incoherent speech and rare moments of clarity, once threatening to turn him into "vibrator No. 18."