Reborn as a Saiyan in a Different World.
The Main Character, Ene Jaaku was a crazy poor otaku that love ancient legends, anime, etc. One days while driving to works he got into a car accident and a flying piece of metal was send flying through the windshield, inpaling him in the chest. Ene was dead and his soul was send into a unknown room. Inside the room a human figure was looking at him with emotionless eyes. The figure explain himself as God of this World, and that you aren't suppose to be dead. But was kill by God throwing the metal. Now, I will grant you another life in a different world with 3 wishes. Thus he was send into a world mix with other myths after saiyan(get it saiyan) his 3 wishes. He was reborn as a saiyan at 18 years olds.