Naruto: Undercover Agent Start with Immortality and Eight Gates

Sharingan? Mangekyō? Rinnegan?

Rinto shook his head and said: Let’s learn about immortality + Eight Gates.

Traveling through the world of Naruto, he had just escaped from the evil cult to the Hidden Rain Village, and was sent to Konoha as an undercover agent by Hanzo;

We agreed on three years, but after three years, another three years followed, and after three years, another three years...

It's been almost ten years, Master Hanzo, and today that old fellow Sarutobi has met with me for the fifth time, forcing me to succeed him and become the Fourth Hokage!

Oh my god~ I don’t want to be Hokage, I just want to go home and get married!

Main characters: Rinto Sakukata, Tsunade,