I Will Steal Her, My First Love!

Synopsis

Taeshin's first love from six years ago, Im Nareem, and his best friend of 13 years, Lee Riun, are getting married. Everything was perfect for the groom, Lee Riun, but he suddenly leaves Nareem behind, and Taeshin and Nareem find themselves thrown back six years into the past! (Source: Kakao Entertainment Corp., translated)