7.15 Kiss

As he was the guardian beast, he was given the power to guard and protect the world but was infected, he hid his self to suppressed the power but failed in the end. The power was strong enough to wiped out everything. That's what caused his wounds and ugly scars, the fog is trying to take control and eat him from inside.

He hurt his self so that he will remain sane or else he will truly be a killing monster, thankfully he managed to stop his self from turning into a mindless monster by using the power that was given to a guardian beast however it was also infected by the fog and it tried to remove it from his body. This ended up him having to lose his memories from trying once and turned into a small beast with no memory and only instincts.

Now, he can only try again and hope to somehow seal it again inside him.