MTL - If You Can’t Be a Son-in-law, You Have To Be Sanctified - ~ Update later today.

Ron finds himself reborn in the world of One Piece, stranded on a remote island in the East Blue. But he's not just any ordinary child—he’s bonded to a mysterious sign-in system that grants him powers with every new location he visits.At his first sign-in, he unlocks the legendary Sun Breathing Technique, along with a boost to his vitality. From Shitmotsuki Village to Skypiea, Enies Lobby to Marineford, Ron travels the world, collecting extraordinary rewards that make him a force to be reckoned with. The Raikiri, one of the 21 Great Grade Swords, Armament Haki, Observation Haki, and more fall into his hands.As Ron steps onto the battlefield of Marineford during the legendary Summit War, the mightiest warriors—Four Emperors and Marine Admirals alike—pause, stunned by his presence. But Ron merely waves them off, “Don’t mind me. I’m just passing through.”Join Ron on his journey across the Grand Line as he signs in at iconic locations, growing stronger with every step. This is not just an adventure—it’s a legend in the making.

[Regressed successfully!]Zick lifted his eyelids, revealing two dull eyes. A grand room filled with medical appliances was reflected on his pupil.The piercing pain originating from the abdomen made Zick slowly accept the reality.He had returned 10 years back in the past!The very moment from when Zick began to lose everything.[Destiny system has been activated. Get closer to people with strong destiny and strengthen your own destiny!][Sub-function: shall be unlocked soon!]After taking a look at the interface, Zick closed his eyes.“First…I should repay that chick for this wonderful gift.” Zick looked at the bandages on his waist.......{Additional tags: Age regression, Evil protagonist, cold female leads, Academy, evil organizations, conquering, war.}

“Stripped of his power, betrayed by those he trusted, and abandoned by fate itself, the young master of the Celestial Clan faces a choice: cling to the tattered remnants of his righteous path or to embrace the darkness blooming within. When a catastrophic fall strips him of everything, he, along with his fiancée by his side, abandons the righteous path. Witness the birth of an anti-protagonist couple, as they forge contracts with ancient, terrifying beasts and carve a new destiny from the bones of their enemies.”In the heart of the Azure Star Continent lies the legendary Celestial Clan, rulers of an unbroken legacy of power, wealth, and influence. At its helm stands Xian Tianyang, a prodigy born with unparalleled talent and destined to inherit the mantle of leadership. Calm, calculating, and relentless, Tianyang has forged a reputation as an unshakable force, a young master whose genius is rivaled only by his ambition.But the path to supremacy is fraught with danger. In a continent where alliances shift like desert sands and rival factions sharpen their blades, Tianyang must navigate a world of intrigue and betrayal. When his childhood fiancée, Lin Yuqing, the “Blooming Empress” of the Eternal Bloom Clan, enters his life, their union threatens to spark both alliances and rivalries that could reshape the continent.With ancient secrets lurking in the shadows, enemies plotting from every corner, and the weight of his family’s legacy on his shoulders, Tianyang must prove that he is more than just a prodigy—he is the heir to the Celestial Throne.Will their fates intertwine as destined rulers, or will the fires of ambition and duty tear them apart? Prepare for a tale of genius, power, and forbidden emotions, where every choice has the power to change the fate of nations.

The world that nurtured the civilization which reached the pinnacle of magic was on the verge of destruction.
The last survivor transmigrated to the past, when the magic civilization started growing, as countless mages were still fumbling their ways through the thorny paths of magic knowledge.
He, who came from the end of the magic era, aim to reach the pinnacle of magic.

- Description from Novelupdates