It's Not Easy Being Your Love Rival's Big Brother - Chapter 18

Reborn as a sword, he lived for hundreds of years, and then he occupied the body of a 15-year-old prince.

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.

A class full of idols and beautiful people are sent to another world. However there is one guy who is ugly, fat and smells… our protagonist. This is his comedic story of evolution and the slow building of his harem. The first heroine is a gorilla.

The name Zhao Tie Zhu (lit. Zhao Steel Pillar) sounded pretty unrefined. But, when it came to his nickname, Phantom, it could be said that everyone in the assassin societies around the world know it. Nowadays, the world was too peaceful, and because of that, the assassination business wasn’t going well. Hearing real estate could earn you good money, Zhao Tie Zhu bought a huge villa, and became the legendary landlord.

He only rented his villa to single women. Zhao Tie Zhu posted renting advertisements on a well-known social website, and with that, women all came one after the other to his villa. The prettiest in schools, the prettiest in police teams, and all sorts of beauties came into his surroundings.

Proclaiming himself as hegemon of campuses, unifying the underworld. All so that the tenants would live in even more content.

I am a very responsible landlord — Said the Zhao Tie Zhu who was stepping on countless skeletons of the enemy.

- Description from Novelupdates