Her gang is the Top Gangster, globally. His gang is the Top Gangster, locally. They met in an.... Unexpected way to meet someone. Her name is Brey. His name is Luhan. She's mature. He's childish. Will love blossom despite their insignificance?

Choi Hana has an arranged marriage with EXO's Chanyeol. They will act out like real lovers while Hana's mom is in Korea. While acting out, one of them will realize how important is each other.