I, the Blade of the Abyss

I woke up in the reincarnation space, only to find that I had become a knife. The host was a trembling girl. Facing the murderer, she knelt down and begged for mercy. "Trash." I forcibly controlled her body and broke the necks of all the murderers. When the girl died and I woke up again, the prompt sound from the reincarnation space sounded: "The memory has been stripped away, please choose the next host." Looking at the new host in front of me, I whispered "Don't die too soon, tool man."