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.
Is Heart Stain on Netflix? Unfortunately this serie is not yet available on Netflix.
| Title | Air Date | Duration | ||
|---|---|---|---|---|
| Season 1 | Episode 1 | Episode 1 | 2025-02-06 | 22 min |
| Season 1 | Episode 2 | Episode 2 | 2025-02-06 | 24 min |
| Season 1 | Episode 3 | Episode 3 | 2025-02-13 | 24 min |
| Season 1 | Episode 4 | Episode 4 | 2025-02-13 | 23 min |
| Season 1 | Episode 5 | Episode 5 | 2025-02-20 | 22 min |
| Season 1 | Episode 6 | Episode 6 | 2025-02-20 | 25 min |
| Season 1 | Episode 7 | Episode 7 | 2025-02-27 | 23 min |
| Season 1 | Episode 8 | Episode 8 | 2025-02-27 | 27 min |
| Writing | Yoon I Na | Writer |
