Rebirth in One Piece as Deputy Captain - Chapter 488

Ye Feng was transported to a cultivation world, but unfortunately had no hope of cultivating immortality and could only live as an ordinary mortal. He only wished to live a peaceful life.Yet he didn’t know—The dog he adopted, because it ate his food, became a legendary demon king.The kitchen knife he casually forged became a peerless divine weapon, causing numerous experts to fight desperately for it.The young disciple he took in became an immortal lord that led an era, due to cultivating the techniques Ye Feng taught him.Even the skeletons he looked down on the most were ominous demon kings that suppressed countless worlds.Many years later, looking at the void shattered with a punch, Ye Feng murmured to himself: It turns out the peerless kings were myself all along…

A Federation Colonel with abnormal thoughts was locked in a dark room and met a little looney.

“Your whole body emits a scent that I dread (covet) and fear (desire).”

A frigid Colonel X little looney roommate: A sweet story of interstellar travel

- Description from Novelupdates

Chu Feng crossed the Jiuzhou Continent and inherited the Ancestor God Blood Pearl, cultivating until he became a Peak Martial Emperor. By chance, he saved an exquisitely beautiful woman with whom he fell in love and married. Unexpectedly, the woman turned out to be the Empress of the Jiuzhou Empire, and after giving birth to twins, a dragon and phoenix, she left without saying goodbye. Through numerous rigorous cleansing and marrow-washing sessions conducted by Chu Feng, these young children astonishingly developed supreme Divine Runes within them, capable of suppressing all forms of energy across Jiuzhou. Three years later, while dull and adorable, the invincible but unaware siblings, took advantage of Chu Feng’s secluded meditation during Crossing the Divine Tribulation, sneakily slipped out of the village, and embarked on a journey to find their mother.

What happens when a ruthless MMA champion, who's lived a life full of Dominance, Blood, and Indulgence, suddenly finds himself in the world of cultivation?Rahu, a fighter feared for his brutality and hedonistic way of life, who was just moments away from laying his hands on his latest ‘prize’ after another victory…All of a sudden, transmigrates into the body of a youth who was half-beaten to death just because a powerful clan elder’s wife took an interest in him?Thrown into an unfamiliar world where ‘Power’ reigns supreme. He awakens a terrifying physique [Infinite Dimension Physique] – One of the only three Forbidden constitutions in existence.The fists that once crushed men shall soon crush the arrogant gods.