Signing In Across the Heavens: A Sign-In System Starting in Konoha

My name is Gu Nanzhi, and I'm an ordinary anime otaku.

The day I died from overwork, I thought that was it for me. But when I opened my eyes, Naruto was grinning foolishly at me with a windmill shuriken in his hand.

A System had appeared in my mind: the Myriad Worlds Sign-In System.

The rules are simple: sign in once a day, complete story missions for rewards, and those rewards can be chakra, a Devil Fruit, a Zanpakuto, or even... the life of some villain.

Other people transmigrate and struggle through monster fights to level up. I get stronger just by signing in.

Konoha, the One Piece world, Soul Society: I clear one world after another.

While Uchiha Obito is still agonizing over how to fool the entire world, I've already collected the Rinnegan as a daily sign-in reward three times.

From today on, the protagonist's halo in this world bears the surname Gu.

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