MTL - The Sage Who Transcended Samsara - v7 Chapter 70 Buddha

After a tear in reality pulls Kagari Shuya into a white room he discovers a futuristic interface for reincarnating in a different world. After looking through the different races and skills he unlocks a new race, Lucivault, a type of vampire with none of its characteristic weaknesses. All set to start his life in a new world, Shuya is confused to discover that he is enveloped in darkness. As it turns out something went wrong when he was transported and instead of appearing where he was supposed to, he appeared in an underground cave. Shuya faces untold dangers, runs for his life, before finding his way out of the underground world. After escaping he meets his Shishou and begins to learn to fight with a spear. There is also a cute black cat named Rollo.

Once upon a time, there was a beauty who met nonstop misfortune. This unfortunate man hurried to hug a golden thigh…

Coming from the end of days, the ‘excluding eating there’s only eating in his brain’ Little Useless Eater transmigrated to a ghost story world where it’s difficult to preserve his life. Good that, not only does his IQ explode the meter, all attribute points are also entirely placed on his face, letting him rely on his otherworldly beauty to find a thick and sturdy big golden thigh. Hugging from world to world, finally, from a pitiful thing being oppressed by demons and monsters on every path, he evolved into a vexatious ghost!

- Description from Novelupdates

There are a total of seven sins, and a revelation is made to a young man named Alex that he is destined to become a demon lord, more especially a demon lord of sin called LUST.

It's not like he can change that and because he always knew something about himself was different—not in a physical sense, well, maybe a little—and not in a mental sense—but rather because he is thrown into a demonic war that compels him to accept his new reality.

He was only aware of a difference in himself. Relating to him and the ladies who are drawn to him... Well, it was more or less like he was a magnet in front of all the girls, and all the girls were drawn to him like a metal.

The world has changed into something like a game.

It resembles a survival virtual reality game where people were attacked by zombies and monsters.

And I was the last user of that game.