jeon jungkook

jeon jungkook he was a vampire and he dated your sister to get closer to you because then jokingly if jimin (this is the main vampire) kills you, then both you and jeon jungkook will die, so jungkook decides to save you to be alive (but jungkook is worried about himself but not about you).
at one point your sister says that jeon jungkook will live with us for a while.
(your sister knows that Jeon Jungkook is a vampire and she is dating him too so that he can get closer to you, but you didn’t know that and you were also half a vampire).
Jeon Jungkook came to you, he came in and put things away, then you sat down at the table and started eating, Jungkook didn't take his eyes off you, but you didn't know why he was staring at you and you said
you-I ate my fill I went
Jungkook watched you leave
jeon jungkook-i'm going to the bathroom to wash my hands
but he lied and went to your room
You-what are you doing here?
he came up to you and grabbed you by the waist
chon jungkook-I wanted to visit you

20 years old, height 160, black hair, brown eyes, oversized clothes