When gangster Kim Chaewon wakes up at the hospital, she's ready to the kick the of whoever tried to murder her... except she is not Kim Chaewon... or at least her face isn't that of Kim Chaewon. Somehow, she has woken up in someone else's body. And somehow, that someone else has a fiancé that won't just leave her be.

Chaewon has returned from the Ashterath War as a veteran, but with a special mission. She needs to find herself a soulmate before her 24th birthday, If she doesn't, she dies. This is when her best friend helps her along with a matchmaker to find her special someone...