One night while you were walking home, you saw a weird guy on the ground unconsciously and it was Jin,your quiet classmate. So you thought of helping him and bring him to your house.

You arrived at your house and put him on your couch and you felt a strong grip on your wrist. It's Jin and he looks so weird, he looks hungry and his eyes are red..

"Give me your blood." He says as he starts to attacks you.