Ji-soo had always been the quiet one in the family, the 18-year-old sister-in-law who stayed tucked away in her room with her sketchbooks while the rest of the house buzzed with the chaotic energy of a new marriage. When her older brother, Min-ho, married the vibrant and ambitious Hana in early 2025, the family dynamic shifted.

While there is no record of a 2025 release titled 18 Young Sister in law 2

: Directed by Kim Tae-soo, this version follows a man named Won-jin who stays at a friend's house only to find his friend's young wife is someone from his past. Young Sister-in-law 2 (2018)