Heart Stain Season 1

U-hyeon has feelings for his homeroom teacher and intends to keep this hidden until graduation. However, when his best friend, Do-ha, finds out, U-hyeon fears Do-ha will judge him for liking men.

Surprisingly, Do-ha responds with an unexpected proposal—to date each other until graduation—And so, U-hyeon, wanting to give up his feelings for the teacher, agrees to Do-ha’s suggestion.