Heart Stain (2025)

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.

• First Air Date: 2025-02-06
• Last Air Date: 2025-03-06
• Total Seasons: 1
• Total Episodes: 8
• Episode Runtime: 20 min.
• Network: Heavenly