My Ninja Academia MNA

Isao was just your average otaku and ninja enthusiast. One day on his way home from school he sees a girl being harassed by a group of men. Rushing into action he manages to buy enough time for her to run away but, gets shot in the process. His final thought as he slipped into darkness was that he sucked as a ninja.

But, that wasn't the end! Suddenly he awoke in the body of a newborn child. Even more insane was the fact that he got reincarnated with a system, and not just any system but, one from his favorite anime of all time!