Sang Du, Let's Go to School Episode 12

Despite Eun Hwan’s efforts, Sang Du ends up quitting and leaving school. Se Ra is evicted from her apartment. With no place to go, she goes to Shim Ran and ends up staying in Eun Hwan’s room. Eun Hwan finally learns that Se Ra is her mother’s lost daughter, Pal Ran. Eun Hwan tries to stop Sang Du from doing his gigolo work and even follows him to a dance club. While Eun Hwan is trying to accept Bo Ri’s existence, Se Ri confesses that she is Bo Ri’s mother. (Source: Kocowa)