This is an ambivalent love story rocked by desire and guilt between a handsome young man who hates people and a nice young man who's loved by others.
I'm the worst pervert, who saw you get attacked and just 〇〇.
Kirie Ukita, an attractive college student, has avoided other people due to past trauma. His coworker, Yukimura, is friendly and popular, which strikes all of Kirie's insecurities.
One night, Kirie passes through a park and witnesses Yukimura getting attacked by another man. Kirie calls for help, but afterwards, the memory of Yukimura's pleading face turns Kirie on and he pleasures himself to the memory.
He feels very guilty, but one day, Yukimura comes up to him and says, "I want to thank you for saving me."
Yukimura has no idea of the carnal passion Kirie felt that day and is instead showing him affection, so Kirie's guilt and panic wells up!