names: No Mercy
genre: Action, Adventure, Thriller
overview: A woman seeks to take revenge when her younger sister disappears and she finds out that her sister suffered violence and sexual abuse from school bullies.
crew: Lee Si-young, In-ae, Park Se-wan, Eun-hye, Lee Jun-hyuk, Han Jeong-woo, Choi Jin-ho, Park Yeong-choon, Lee Hyeong-cheol, Ha Sang-man, Kim Won-hae, Boss Jeong
orig_title:  언니