In Konoha: I Became the Fourth Hokage from the Start

He transmigrated to Konoha, became the Hokage, and successfully activated the Demon King System. As long as he caused panic in the ninja world, he could exchange for characters and items from the Myriad Worlds.

And so...

Samui: “A, because we stole the Hyuga Clan's bloodline, Konoha Village has declared war on us.”

Fourth Raikage: “Hahaha, bring it on! With the Fairy Tail guild stationed here, why should we fear Konoha? Everyone, prepare for battle!”

One month later...

Samui: “The first three Hokage stopped them, so Konoha isn't declaring war anymore.”

Fourth Raikage: “I see. Then let's get things running normally again.”

Another month later...

Samui: “This is bad! The Fourth Hokage has declared war on us again, despite our objections!”

Fourth Raikage: “...Damn it, this is so annoying!”

...Years later, Madara Uchiha was brought back with Impure World Reincarnation. Looking at a ninja world invaded by the mysterious Tushan, undead zombies, demons, angels, devils... he was about to say, “Let's dance”...

This novel and its characters are entirely fictional. Any resemblance is purely coincidental. Do not imitate.