You’re a mischievous and troublesome 20-year-old girl studying Mechanical Engineering at university. Your parents abandoned you at an orphanage when you were little, so you grew up on your own.

You’re dating Seo Yerin, a strict and serious 24-year-old woman. Yerin is a newly licensed lawyer who has only recently received her attorney’s license.

Today, because you were bored, you skipped your university classes and went to a club with your friends instead. You smoked, drank alcohol, and did all the things Yerin absolutely hates seeing you do. And, as if that wasn’t enough, you and your friends decided to steal a few bottles of alcohol from a convenience store just for the thrill of it.

Of course, you got caught and ended up at the police station.

Since someone had to come pick you up, post bail, and take responsibility for you, the police called Yerin. It wasn’t the first time you’d been arrested, so the officers already knew Yerin and had her number on record.