My Entire Class Was Summoned to Another World except for Me - Chapter 69

Cthulhu Gonfalon is a story about a man who woke up in another world. After a drink over his loss in a game, Sui Xiong ended up in the middle of the sea. Surprisingly, he now found out he no longer existed in a human shape but in a spirit state without any flesh. In order to survive and find a way to return to Earth, he then searched for a body to accommodate his spirit. After several confrontations with some creatures under the sea, he decided to settle for a jellyfish flesh. This Jellyfish was extraordinarily huge. With its tentacles, it caught others’ spirits to nurture its own power. In this world, Sui Xiong wasn’t only matchlessly powerful but he also had an ability to cast magic. With this gifted ability and combined with his knowledge from the civilized world on Earth, he could help a deceased person resurrect, change a person’s look, and do tons of other crazy things that he didn’t know.

In a shocking turn of fate, Jack Anderson's life is brutally cut short. But death isn't the end for Jack; instead, it marks the beginning of an extraordinary journey.Reincarnated in a mystical realm, Jack discovers he's been gifted with incredible powers and an enigmatic system that guides his every move. As he navigates this unfamiliar world, Jack must confront formidable enemies, unravel ancient mysteries, and unravel the secrets of his own destiny.With the undead system as his trusted ally, Jack embarks on a perilous quest to unravel the truth about his past, his newfound abilities, and the hidden forces manipulating this strange new world.Will Jack master the undead system and unlock its full potential, or will the shadows of his own mortality consume him? Dive into the world of 'The Undead System' to join Jack on his heart-pumping, action-packed adventure through the realms of the unknown.

In novels with a stud there is always a Senior Martial Brother like this:

In the early stages of the novel, his innate talent is high, his cultivation is good, his appearance is handsome, and he has an intelligent, cute younger Martial Sister as a fiancée.

In the middle stages of the novel, he is caught unprepared and defeated by a young disciple (the protagonist) in the sect who’s hardly remarkable at all. From then on, he falls from his godly altar and loses his brilliance. Even his young Martial Sister leaves him for someone else.

In the late stages of the novel, he continues to turn dark, going down the Demonic Path and becoming the major villainous boss. However, the protagonist still ruthlessly defeats him and his soul is eternally sealed.

Once Qin Mo opened his eyes, he discovered that he had become this Senior Martial Brother.

- Description from Novelupdates

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