애간장 - Season 1 Episode 4 Серія 4
- Жанр: Comedy, Mystery, Sci-Fi & Fantasy
- Студія: OCN
- Ключове слово: time travel, high school, based on comic, romance, teacher, hidden identity
- Актори: Lee Jung-shin, Seo Ji-hoon, Lee Yul-eum, Lee Tae-seon, Cho Lee-hyeon, Min Do-hee