World End: The Successor's Contract

What would you do when you wake up in another world with an Analysis system backing you up?Sato Inugami fell victim to an explosion in his apartment which led to him reincarnating after his death.With the help of his Analysis Helix system which helps him store skills and knowledge about the world of fantasies.From ruling over elves to build an entire nations with the help of his system, beautiful maidens and subordinates, Sato soon found himself being formidable.With his success soon known around kingdoms that posed to be a threat to him as he climbs up the rank.Sato must now protect his people from Demons, Kings, and even gods as he rose amongst the ranks to become the strongest Ruler.