Save a Failed Idol's Life - Chapter 221:

Once through the pirates, Lu En became the son of Monkey d Dragon, a grandfather named Monkey d Karp, and an unreliable and neurotic younger brother named Luffy.

Fortunately, the ghost back system is activated!

The completion of the ghost back is 10%, and the training effect is increased by 100 times!

The completion of the ghost back is 20%, and the training effect is increased by 1000 times!

…

One day, Lu En, a ghost-backed master, appeared in front of Luffy who was shouting to go to sea, and made Luffy cry on the spot.

Luffy: “The pirates in the sea are all monsters like my brother? I don’t want to go out to sea!”

Garp: “For a long time, the two boys, Long and Luffy, with small arms and calves, I really doubt that they are not my sons and grandsons. Like Lu En, they are the grandsons of the old man!”

Warring States: “The strongest creature in the sea, land and air is Kaido? No, it’s Lu En!”

- Description from novelbuddy

I will go forward step by step, until one day I surpass you, Dad! !!

Zhao Gang, who has graduated from the World Hunter School, returns to the city. He inspires his own country and surpasses his father who is already at the top of the world.

- Description from Uukanshu

At the beginning of the Death World, Reiko’s body was smashed to pieces by the broken world, and he started a journey to all realms.

Uncle’s World from Another World: Aunt Cui is actually my neighbor!

The World of One Punch Man: The Bald Devil’s Bad Friend?

Those who want to become a powerful shadow person: I am really not the protagonist!

Spells return to the world: become the fifth super spellcaster!

Overlord (Bone King World): I became one of the 41 Supremes, but now I just want to be a human.

Other worlds to be determined…

- Description from novelbuddy