Reincarnated With The Degenerate System - Chapter 2: Perfect System

A side story series featuring the girls of Kyoukai Senjou no Horizon.

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.

[Quick wear from the male protagonist’s perspective]
The cool and handsome arrogant brother led a dragging oil bottle down to earth to save the healing system of the BE female supporting role, Kuaishou Xiaotianwener.
“As long as it is the star of my big star sea, no immortal is allowed to die!”
.
Love Show’s Little Green Tea
The goblin of the diamond giants
Xiao Wenqing in the old film of the Republic of China
The little hind legs of the girl group out of the circle
The little green plum with the head in love
Little White Flowers in the 1970s
half princess
Li Daitao’s poor little pity
little rose of the court marquis
The little virgin who loves the brain

Content tags: rich and powerful family female match sweet text wear book
Search keywords: Protagonist: Jiang Shi ┃ Supporting role: His Royal Highness Dark Star ┃ Others: Daxingchenhai
One sentence introduction: Operation Star Rescue

- Description from novelbuddy

Leo died like an idiot and got a second chance in a world that doesn't tolerate idiots. Dropped onto forbidden Oni territory, he's forced into a death hunt where survival should be impossible, but his body adapts through violence, pain, and sheer refusal to stay dead.One brutal victory earns him gold, status, and the attention of Iori, a warrior prodigy who's never tasted defeat. Now, traveling a continent where strength is law and gods play with mortals like pieces on a board.Leo faces a simple question: how strong can you become when dying just makes you harder to kill?