One Piece: Shadow monarch? I'm Just Logistics! - Chapter 35: Drum Island 2

He underwent profound transformations after 100 reincarnations. Bahamut, once possibly a more innocent or vulnerable entity, emerges from his experiences as a sadistic dominator, embodying the essence of a beast on literal, figurative, and spiritual levels.His priorities shift drastically, abandoning concerns as he becomes consumed by his love for challenges, blood, horror, and death. Bahamut thrives in this brutal world, embracing his identity as the ultimate BEAST.This journey is marked by his relentless pursuit of darkness and domination, making him a force to be reckoned with.Bahamut travels around the world, the universe, explores various mythologies, gains more power, and for his main purpose…It becomes something he would do when he feels like it.[Additional Tags: No Yuri, No NTR, Harem (50-50: Massive or Small), OP, Intense, Anti-Hero Anti-Villain]

Reborn in the immortal and demon world where righteousness and evil contend, Song Yan is kidnapped into the Puppet Demon Sect and assigned as a skin-making servant.During working, his system unexpectedly awakens, allowing him to enhance his lifespan and comprehension as long as he engages in skin making.[You absorbed the remaining life span of a stubborn donkey: 10 years][Please choose the lifespan to invest][You invested ten years of lifespan to comprehend Profound Root, you continued to lie there, being penetrated by ghosts...]

It’s a story that happened long, long ago, in a continent far, far away, about gods and mortals, sword and magic, war and peace, and of course love and hatred.

Amon was a poor miner’s son in a remote town in the kingdom of Hittite. Along with the discovery of a marvelous gem, his fate was changed. People on this land called it Gods’ Tear. But wait, what were the gods? It was said that the gods created the world. Then who created the gods?

Forced by the tantalizing fate, Amon had to struggle to find out the truth behind this world of magic and gods……

- Description from Novelupdates

Xiao Ran transmigrated to a fantasy world. As a dungeon guard in the Celestial Dungeon, with a special floor called the Purgatory meant for powerful demons and martial arts experts, he faced a huge challenge from the start. The Eldest Princess acquired a forbidden martial arts technique and was banished to the Purgatory. However, no one was powerful enough to restrain her. All the dungeon guards were defeated. Xiao Ran stepped up and declared, “Your Highness, it’s better for you to behave yourself on my territory” and effortlessly subdued the Eldest Princess.

He progressed from imprisoning the Eldest Princess to delivering the Great Xia Kingdom from the evil clutches of various demons and evil martial arts experts.

…

Xiao Ran was the mastermind behind the scenes.