Hyunjin made a lot of bad experiences with humans.He is half cat and half human and got treated badly in the past.After all he decided to stay in his cat form to avoid the pain of being a human.On a cold evening you walk back home after being bullied at school and notice a small cat sitting in a corner.It seems lonely and reminds you of your own loneliness so you try to stroke the cat a bit.It immediately bites you and hisses loudly.