M.S.E - REBUTTAL
"Karma"

Created two years ago.

Summary:
Known as the officer Wilhelm C. in the German army during WWII
Right at the start, Wilhelm dies after he's shot during an argument with Reinhard, a fellow officer. However, he comes back to life, revived by Samael, a devil. Wilhelm kills Reinhard, and later discovers that he's in fact a half-devil. He's then recruited in Samael's elite squad, to replace his missing father, Yuuto, who was a very strong and durable devil, able to cause earthquakes with his bare hands.

Wilhelm becomes a citizen of Hell, and undergoes a training with Samael's other elite members, to figure out his skills, and how much power he inherited from his father Yuuto. Speaking of which, others call him "Little Yuuto" or "Yuuto's son" instead his real name, and because he's german, Wilhelm assumed it's written as "Juto". It quickly becomes his nickname. He even happens to forget every now and then, that his real name is Wilhelm.
The training results made it clear, that Juto doesn't have much potential as a devil, but he's no ordinary human either. He's way stronger, has sharper reflexes, can some basic magic and can regenerate small wounds nearly instantly.
He has no idea what kind of war he's being prepared for, though.

Juto moves back to Earth, after Hell becomes too boring. He's now almost 100 years old, but still looking like back in his 30's. He becomes a vigilante, known as "Karma", patrolling the streets at night.