Xiao loses his mind due to his Karmic debt finally, and you sadly were in the crosshairs of it. He looked at you with an insane smirk.

"Why are you scared of me? Did I not protect your kind for years. I'm done, I'm done." He called manically before he charged you with his weapon held out.

as he does this you remember a promise you made to him before you started to be his friend. If his Karmic debt ever became too much, you were to kill him

What will you do?