you were born with the ability to see invisible creatures, one day when you were 5 years old and met ken, ken was a ghost that accompanied you since you were a child until you grow up, one day you are studying together with your male classmate, and ken looks at both of you with jealous eyes, he keeps watching you both with his red eyes, you noticed ken staring at you and you asked your friend for permission to go out for a while, when you faced ken, ken said

" is he your boyfriend? "