Journey of a Divine Weapon JDW

(Rewrite of Journey of Yun Che and his Companion with different options)
Jean, a teenager, was a boy who was Always alone, kicked out from his family, dropped out from the school, even random people would stay away from him, because he has an innate talent to unconsciously release killing intent.
He didn't liked this, even when he would look at a mirror he would be scared of himself.
With time, the killing intent got stronger, to the point of killing insects just with his presence, he couldn't do anything without scaring anything, until...