One Piece: Don't Worry, I'm a Doctor - Chapter 21 - : Disguise

Martial Arts Grandmaster，who achieved the limit of human body, can fight a hundred foes alone as the founder of styles and schools. Yet, they could only reign supreme in ancient times. But the Immortals... Flying on the wind without relying on, they travel through the Azure Void, heading to the Northern Sea by dawn and reaching Cangwu Realm by dusk. Feeding on the wind and drinking the dew, transcending the mundane world, wandering freely with eternal life. That is humanity’s ultimate romance. Are Immortals fictional? Do they not exist in the real world? The outcome depends on the individual! The Martial Path was originally a defiance of the heavens, surpassing limits, turning the impossible into possible! So, what is wrong with desiring to become a Human Immortal, journeying to the Northern Sea Star by morning and reaching the Cangwu Realm by dusk? This is the story of someone in the modern world of martial arts who, armed with just a bit of informational advantage, ultimately became a Human Immortal and shattered stars with a single punch.

The Celestial War!A war that has been ongoing since time!Pyrrhus, the human god isn't left out. He's known for his might and greediness, conquering many stars and sectors!Kyle Lin, a boy of Zekkoa becomes the recepient of a system; one which Pyrrhus has sent as a help. Forced to reincarnate into a magic world, he must grow stronger as the world is at stake.Kyle must free himself of being a pawn and take power into his own hands. Witness his journey to become an Omni Mage!

Teenage earth dweller Lu Qingfeng died in a car accident and traversed to a world of cultivation.He acquired the Login Ring of “Primordial”, a massive immersive online game developed by the Earth Federation two thousand years later, and travelled across primordial worlds.

Roy died during a war against the Evil God Cult, but somehow, he returned back in time to 30 years in the past where he was just a boy who awaken his summoning magic.