DxD: Scion of Lucifuge - Chapter 341: Leaving One Punch Man World, Conquering Teyvat—Claiming Amber, Eula and Jean!

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

Raphael Sorus is a person who life hasn't been very kind to, after the death of his family his life has been on a downward spiral with nothing good going on for him.The only thing that kept him from losing his mind was [Arcane Days], an Immersion game that served as an escape for him, that was until the game company shut down the fame server.Not knowing what else to do, Raphael decides to do something stupid which lands him an audience with the Goddess of Fate.She sends him to a world that is a replica of Arcane Days, except there is a twist to it.Readers can expect a large world as well as interesting situations and a unique power system, as well as a laid-back plot.

With Ye Chen, who inherited the devil, reborn the Phoenix continent, invincible, there will be any unknown secrets waiting to be solved here.
   The “City Revival Master” has been completed, and my brothers support it ~~

- Description from ~