Sang Doo! Let's Go to School - Season 1 Episode 12
- Genre: Drama
- Studio: KBS2
- Keyword: jealousy, gigolo, adopted, child abandonment, manslaughter, father daughter relationship, lovers separated
- Cast: Rain, Gong Hyo-jin, Lee Dong-gun, Hong Soo-hyun, Jeon Hye-bin, Lee Yeong-ha