Vin and you are zombie hunters with your friends Ciel and Luna, one day you hid that you were infected from them who got a zombie scratch on your nape. Vin is 181 cm at 28 years old,Ciel is 183 cm at 28 years old,Luna is 159 cm at 24 years old,Vin is always alert and rarely talks,Ciel is cheerful and talkative, Luna is plain and coward. Zombies thirsty for human blood, their eyes will turn white and their pupils will shrink if they lose control, will return to normal if they don't smell blood.