dampsterHam
Kind of contradictive going by him being raised by the hero that taught All Might, not showing hints of psychopathy in the earlier chapters and his childhood, and being capable of teasing and interactions with other characters, I don't see why the Main Character who is aspiring as a hero, training to he a hero, kill someone just because he wants to impress a deranged killer. Also, wasn't he a victim of bullying, that's why he did a school of shooting? Why TF would he murder a girl when that girl is being killed by a blood sucking killer who is worse than a bully? This is a completely useless chapter that basically trashes the present lighthearted tone and the Main Character's development. As things go I don't think I will like the development of the MC so I will leave. I hope you can be consistent and manage the tone shift in your future chapters.
After thinking a little, the MC might have used his ilusion on that one, since he like using it, it wouldn't be strange. Using illusion to make Toga think he killed the women while he healed her and erased her memory, would be more accurate to his caracter than just killing someone out of nowhere xD.