Transmigrate with an Invincible System

A scheming shut-in transmigrates as Uzumaki Naruto, bringing along the strongest System to build the strongest harem. Ahem, I mean, to become the strongest Hokage.

Some shut-in: “Wait, let me see what today's daily mission is. Hm, easy enough: kick the Third Hokage in the butt. All right, I admit it, you're setting me up. Who can just go around kicking the Hokage's butt? And even if I do, won't the Anbu come after me? God, somebody save me.”

Some System: “I am God.”

Some shut-in: “...”

“You win. I'll do it, okay? It's just a kick in the butt. What's the big deal? At worst, in eighteen years I'll still be a strapping young man.”

This novel and its characters are entirely fictional. Any resemblance to real people or events is purely coincidental. Do not imitate.