In high school senpai reject confession from his kouhai bc he wasnt gay and dont understand his feelings. A couple years later they reunion by senpai coworker who imitate a kouhai boyfriend. Althougt he has a boyfriend he get down on senpai not only one time. He want to make him fall in love in him and later said that same word he heard from him in high school but he is concious about his own heart and cant do it.
Kodoku Na Taka Wa Hitokoishikute