In middle school, Kouichi Harukawa was traumatized after being outed as gay and subsequently ostracized by his classmates. As such, he chose to attend a high school outside his prefecture with the hope that he would never encounter anyone from his past. However, in Harukawa's second year, an incoming first-year student catches his eye. It is Kaoru Koga, his junior from middle school who immediately explains the reason why he attended such a remote school—he has been chasing after Harukawa. Harukawa only wishes to forget his middle school days, but Koga is a remnant from the past that refuses to leave him alone. And then, after a tense confrontation, Koga kisses Harukawa, reminding the latter of what the two once shared.