[This book is also known as: "Pirates: The Strongest Background Emperor in History!" "Pirates: I Unite the Rocks Pirates!" "Tremble, Celestial Dragons" "Pirates: He Defines Legends!"]

He traveled to the world of pirates and became Rocks' biological brother, but his parents were brutally killed by the Celestial Dragons when he was 2 years old!

In order to avenge their parents, the two brothers resolutely went out to sea, became pirates, and took revenge on the Celestial Dragons!

Many years later, such a legend was circulated on the sea.

"As Rocks' only brother, Rocks regards him as his Achilles' heel!"

"Marry Whitebeard's sister and be regarded as the most beloved brother-in-law by Whitebeard!"

"Charlotte Lingling's only husband!"

"The lifesaver of the great pirates Golden Lion, Wang Zhi, Silver Axe, and John!"

"Kaido regards him as an idol, a man he will follow for his whole life!"

"Just hearing his name is enough to scare the celestial dragons to death!"

This era is called Loen!

Kitazawa, a three-no traveler, a mediocre Chunin, taught at the Konoha Ninja School in order to survive to the end. After twenty-one years, he suddenly got a very wrong system. [Congratulations to the host for turning six, the strongest Hokage training system is open. ] "I finally got lucky? Wait, look at my eyes, this is six years old?" [Task 1: Help your deskmate Hinata Hyuga to get back the scarf. ] [Task 2: Graffiti on the Hokage Rock with your classmate Naruto Uzumaki. ] [Task 3: Defeat Uchiha Sasuke and dominate the Ninja School. ] [Task 4: Become the new three ninjas with Naruto and Sasuke, and worship Tsunade as your teacher. ] "Answer me, is it appropriate for a 21-year-old teacher like me to do this kind of task? I won't do it even if I jump from here!" [Task reward: Konoha Uzumaki...

(Infinite flow, plot prediction, never lose)

"I fight Sukuna? Really?"

Fang Yi looked at Sukuna, the final boss of the Jujutsu Kaisen world, who was walking slowly towards him.

There is also the elimination mission issued in the first world of the reincarnation space.

[Fight with Sukuna Gosei and survive]

Eliminate after failure

I suddenly felt full of malice.

(Subsequent worlds, Kabutojo, Demon Slayer, re0, Kill Aka, One Piece, Type-Moon Fourth and Fifth Wars, Bleach, Naruto, etc.)