Noh Seung Ah

Original Webtoon 

Rising stars and longtime childhood friends, "So Dakyung" and "Ji Minwoo."The scandalous open 'business relationship' is rapidly evolving to 'marriage'!But somewhere in this whole marriage, is something a little suspicious."Before the summer you turn 29, you must succeed in marrying So Dakyung."What kind of story did he have with his old note?Links:Official Indonesian Translation

One day, just before Shin Hae-soo becomes a third-year high school student, there's a marriage? And her partner is the infamous teacher, nicknamed Viper, Choi Hyeok Jun? The sweet love story of marriage before romance between the clumsy couple with 12 years age gap, Hae-soo and Hyeok Jun.