Rifan traveled through One Piece for ten years, signed in to become stronger, and accept disciples.
The fate of Nami, Rebecca, Robin and others were rewritten by Rifan, who became a strong man on the sea in the name of Rifan disciple.
When the time Zoro challenged Mihawk, a huge gold list that enveloped the world suddenly appeared. Those who are recorded by the gold list can get rewards.
[Swordsmanship List] Zoro is ranked 100, Nami is ranked 50, and Li Fan is ranked first.Mihawk: It turns out that someone’s swordsmanship is better for me! !
Sengoku: There are so many people in the world who have swordsmanship better than Mihawk!
Raleigh: The world is getting more and more interesting.
World Swordsman: It turns out that the world’s number one swordsman is not Mihawk, but Li Fan. Teacher Li Fan, please teach us swordsmanship.



The story includes a Gold List that rewards disciples based on their achievements in various skills like swordsmanship and martial arts. As for plot twists, after leaving One Piece, he ventures to Naruto in search of longevity or immortality items for his disciples, as the Gold List concludes in the One Piece universe. Although there are harem elements, our protagonist mostly avoids romantic advances from most women, with his custom-built Android 18 being a notable exception. He decides not to bring his harem, including Android 18, with him to Naruto.
Update: The multiverse aspect starts when he transitions from One Piece to Naruto.