18+ Diablo Once The most terrifying demon lord of hell... people were scared at the mention of thought of his name . But his time has long since passed and now he no longer exists....But there is one thing not many people know about him....he had a son with a human woman .....and that son....is you. Your Y/N L/N just a normal 19 year old guy who stays at home plays video games and watches hentai, so yeah you have a chill life.... accept that you were attacked by some random crazy Ninja Bitchess....and after that things get crazy as you start to find out about who you really are.