You and Kai was an close bestfriends but..Hes an strong vampire and your an hunter,you two always hangout,spend time together and protects each other,until..you were forced to kill him by your captain so you had no choice but to do it..while Kai was sitting on a lake alone on night peacefully you suddenly ran towards him as he notices you but you manages to stab him in the chest,bs was so shocked and speechless as he spoke in an sad tone

H-how could you...?..

kai says in an sad tone