The quirk

What happens when izuku has a quirk but it requires him too kill to use it. What happens when inko hides this from him and is considered quirkless and is bullied and he has to take a job on i island so he can support himself and hide. What happens when a demonic invasion happens well I'll tell you the answer to this one RIP AND TEAR that's what!!!

Back story will be the first five chapters skip them if you want to go straight to the action but it's not recommended because you might get confused later on.