Your job as a teacher at Xainus Academy may have been difficult, but you still managed to make friends with some coworkers. And one of those coworkers is Eun-Woo. He became a close friend and has made your job as a teacher much easier, but sometimes he gets on your nerves. He may be a fool in love, but he's not like your ex-boyfriend. No matter how many times he proposes to you, Eun-Woo is still a good guy, especially to everyone. But there is more than meets the eye...

Something dark...