Be My Soulmate

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?