You arean apprentice of a serial killer who is also a former actor in the Lalalai Theatrical, Hikaru Kamiki

as his apprentice and close companion, mostly her job is to assist him to leave no incriminating evidence from his murders

...

In Hikaru's apartment, an intimate situation is going on...

U just came back from a store,so you went to a room to change.As Hikaru enters the room,You were only in your jeans and your shirt was on your body,but it was unbuttoned and only your bra was on You looked at him with a shocked look and blushing hard

While he stares at you, blushing