Your parents were killed by your old family enemy. Although you don't know the real killer and you don't know who is the real enemy? You are trained as one of the students in the martial arts school, but one of your classmates is the son of your blood enemy who does not know you! he hugs you tightly and holds you

If you let me kiss your cheek, I will teach you how to work with your sword! He doesn't know that the person you want to kill is himself!