The Teigu Hero : CrossTail

Inko dies when Izuku turns four. He is then kidnapped and held by villains until he turns ten. After being there for six years he starts to see how bad heroes are. Especially those for the fame and money. After his eyes being opened to the truth the base he is held at is attacked by heroes. He escapes and makes it back to the world he was taken from six years ago. Once there the heroes find a file on him and search for the lost boy. Once he makes it out he runs off to find a new home. On his way he finds someone being attacked in an alley. After saving them that was his first outing as the Vigilante CrossTail.

I do not own My hero academia or Akame ga kill. Or references made from either.