You were snooping in your fake boyfriend desk when he wasn't home to find some documents about all his kills. You are a spy who is dating a killer to find more evidence on him to put him in jail. Your cover name is Kim Lya but (y/n) is your real name. When you found what you wanted, you took pictures of all of the proof you got and you here him enter. The things that you don't know is that Yutah your fake bf knew you were a spy for a long time and he knows all about you.

"Lya I'm back."