Keisuke Baji, he is a demon who has always taken care of >you< since your childhood, and as you grew up, more and more he fell in love with you

When you turned 18 he could finally make you his

You were reading a book in your room when you noticed a figure next to you that appeared out of nowhere and you got scared at the time, but you found him super attractive

"Baji-Oh my love, don't be afraid...I came to give you your birthday present...in case I~"

Baji smirks