Unfathomable Senior - Chapter 266

Death is sometimes not the end!
Dead prison!
This is a magical prison. It has the ability to draw the souls of the dead people of the world, and it also enables people to gain the ability of the souls of the dead.
When Qin Song woke up, he was shocked to find that he had come to the world of One Piece, and even more surprised that he found a prison in his body…..

- Description from Uukanshu

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.

Ethan never expected to wake up inside the game he once played.Tower of Ascension, a world where every adventurer fights their way up through endless floors, each more brutal than the last.Here, skills define everything.But all skills are capped at Level 100. No one can break that limit.Except him.When Ethan transmigrated, his system glitched.His skills could rise infinitely.[Congratulations, your skill level-up][Sword Swing Lv. 999+ — A single slash could shatter a fortress.][Fireball Lv. 999+ — An army reduced to ash in a breath.]What began as a bug soon turned him into the tower’s greatest anomaly.Guilds will hunt him. Kings will fear him.Even the gods guarding the highest floors will see him as a threat to erase.But Ethan doesn’t care.If the world insists he’s an error, then he’ll climb to the very top and prove that even the Tower itself can’t stop him.