Rio was leading a typical high school life until Tomo-chan, the impressive newcomer, appeared. Rio observed Tomo-chan's commanding presence from a distance. One day, Tomo-chan picked up Rio's planner, which had a photo of his favorite idol, a male teacher, inside.
Tomo-chan assumes that Rio is gay and shares his desire to "fix it." They enroll in a Homosexual Reparative Training Plan. Rio is hesitant, but he starts to develop feelings despite his reservations.