You're Not A Weapon

The fusion dimension had plans to take over the three dimension and Academia helps by created a powerful being that can kill anyone once trained but a person from the XYZ dimension named Yuri broke into the place stealing the "Ultimate weapon" to keep it from happening however this ultimate weapon thinks of himself as just a weapon nothing else so now Yuri is determine to prove to the ultimate weapon that he is not an ultimate weapon and that he can be a human and can be good