Naruto System in One Piece - Chapter 387

The story of a human reincarnated as the Creator God of a new world, and her observation logs of the burgeoning new world and life.

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Dragons, which have existed since before the birth of human civilization, became the guardian dragons of the empire.

But whether you guys call me that or not, I’m going to sleep.

500 years ago, Chen Xi was devoured by a crack in the void and was transported into a cultivation world.

500 years later, he returned back to Earth after enduring through several hardships and discovered that only 5 years had gone by.

…

In the courtyard, beauty at the side, a candle flame wavering.

A gush of clear wind, half a full moon, the peach tree remains unchanging.

…

Wait, whose kid is this?! Why is she calling me papa? Gazing at the little girl in front of him with skin as pale as jade, Chen Xi froze.

…

　
Returning home from cultivation, starting as a stay-at-home dad.

In this life, not fighting to be a king nor claiming to be a tyrant, only praying to peacefully be a wife-pampering mad devil and a child-protecting daddy!

- Description from Novelupdates

It is an ultimate goal and dream for every man to be fully in charge of the power while lying drunk beside a beauty’s knees.

There was an ordinary man who had originally led a calm and average life. His life should have been mediocre throughout. However, one day he got a queer stone from an old swindler. Surprisingly, with the help of the stone, he actually possessed the ability to see through things. His whole life was turned upside down overnight. The door to a brand new world was open to him. In the end, having numerous beauties surrounding him, he got caught up in a relationship vortex, a grand scene of fighting over power: Starting from being a mediocre and nameless nobody, he overcame all the difficulties on the way and raked in the power, the beauty, and the wealth all in the end. Let’s have a look at how he had the whole city in the palm of his hand, how he lived a glorious life, and how he made himself a legend with just one simple stone.

The Immortal Path led to Longevity and Sovereign was heading in ease. When the Longevity was no longer in ease, all living beings were just prisoners. Conspiracy, internal strife, and the invasion of the others, all of it emerged together. 

In such a world, there was such a young man. He made his way upstream, stepping on blood, defying the emperor, destroying the various kings, and slaughtering his way through the hundred clans to form an Immortal Path towards the throne of Sovereign! The Immortal Path was endless, while the Sovereign was limited. He used his blood to forge his immortal legend.

- Description from Novelupdates