Diary of Guarding Monster Girls - Chapter 643 - 363 Advanced Legendary!!! (Seeking subscriptions!)_2

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.

[Congratulations! You are the Pioneer of the Mutation Abyss. Brace yourself - The Apocalypse begins now…][Main Quest: Eliminate Fellow Survivors][Description: The strong will thrive, and the weak will perish]Theo was never lucky. Bullied for his appearance and always underestimated, he lived his life as a pushover. But everything changed the night a meteorite struck him. His life takes a drastic turn.Chosen by the Mutation Abyss, he gains access to a mysterious system, granting him an evolutionary advantage.The world is doomed. An infection is spreading, turning the world into a deadly battleground. As the human Infectees mutate and portals to unknown realms open, otherworldly forces threaten humanity’s survival.Theo must harness his new abilities to survive in this brutal world. But in a place where strength is everything, will Theo keep his humanity, or become something worse?

Kuro Aku was a high-schooler who one day bought a game because he liked one of the characters on the cover.

To his great surprise, that game turned out to be an otome game and the character he liked was the villainess who was destined for a bad end!

He was desperately playing through the game in search of some sort of way to save the villainess but he died in an accident before he could achieve that, and got reincarnated into the world of that very game by a selfish being who began calling him its toy!

In a different world, before the proper game started, and as a side character who doesn't even have a name fueled by a firm conviction to save the tragic villainess, he won't stop at anything to ensure her happiness!

Is saving the villainess even possible?

And what does being a toy of the mysterious being even means?

Read now to find the answer!

Former title: Reincarnated into an otome game and becoming the attendant of the villainess - For my master, I'm ready to even kill the heroine

Supernatural, adventurous, fantasy, reasoning, competitive, fantasy, xianxia, ​​martial arts, magic, history, city, science fiction, war, mythology… Infinite world, infinite wonderful original world Infinite + Advent complete “Ultimate Fear”, ” “Dream Evolution”, “Fantasy Comes to Reality”, quality assurance

- Description from novelbuddy