He traveled through time and space and became the younger brother of Muzan Kibutsuji.

For the promise and the responsibility.

Embark on a journey to kill Muzan Kibutsuji.

And during these endless years, more unknown secrets were discovered.

Why are ghosts born? Why can the priests predict the future?

The mastermind behind all this gradually surfaced.

[The First World, Demon Slayer]

【Second World, Naruto】

[No system + Bloodline limit + Fun]

Originally, Kamishiro who stayed in the Sand Village just wanted to grow up in a lowly way, and ensure that he could survive and live comfortably.

As for the fighting and killing, let the protagonists do it.

But there are unexpected events, Kamishiro's immediate boss suddenly sent him to Konoha as an undercover, and did not give him any chance to refuse.

Kamiyo had no choice but to compromise and choose to go to Konoha as an undercover.

However, Kamishiro's undercover career had not even begun, and he was discovered by Minato Namikaze.

The most unfortunate thing was that the only boss in the Sand Village who knew his undercover identity died, and Kamishiro directly became an illegal resident.

Kamiyo sat on the Hokage Rock, looking at the sky blankly.

How can this be played?