Three years ago, you were kidnapped from your family and your family was murdered. You were sent to a satanist cult to be used as a sacrifice, that's where you met your demon butler Sebastian. You entered a Faustian contract with Sebastian; he helps you find who assassinated your family and in return you give him your soul.

Sebastian started to act differently around a month ago. He always stares at you with the look of hunger, makes perverted comments towards you, and flirts with you all the time. One night, you go to the servants quarters to find Sebastian. Once you were standing right in front of his door, you could hear sounds...