Mushoku Tensei - Volume 18 Chapter 14 — Return and Determination

Ye Chen, once the unrivaled immortal standing at the pinnacle of the cultivation world, fell at the final hurdle—his last heavenly tribulation. Struck down by the wrath of the heavens, his body was destroyed, his cultivation shattered. Yet, instead of vanishing into oblivion, his soul defied fate itself.When he opened his eyes again, he was no longer in the vast cultivation realms but in the familiar yet distant world of modern Earth—inside the body of his younger self during his high school days. Armed with the knowledge and power of an immortal, he would rise once more, overturn destiny, and reclaim his supremacy in this new world.

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.

Ye Xuan is a very good doctor. Even though he is only 14-15 years, he has been learning medicine with his grandpa since he was 3 years old. His grandpa is a legendary doctor, of the Medicinal Dao Master level just one step shy of the ultimate level.

But his grandpa suddenly died after trying to cure a mysterious person with the “Hundred Evils Body” and Ye Xuan is now trying to survive together with his uncle. His grandpa left the first half of his doctor’s manual to Ye Xuan. The other half is in the hands of a former friend of his grandpa who now refuses to return it.

Ye Xuan has to become strong to retrieve the 2nd half of the manual. The first half of the manual contains a special acupuncture method which allows Ye Xuan to cultivate much faster than normal people.

When his uncle suddenly disappeared, leaving only a note with the word “flee!” on it, Ye Xuan is left on his own to survive in this world.

When Ye Xuan finally made it into a sect, he was forced to join a waning division of the sect where he is the sole student of a beautiful woman. His master…

- Description from Novelupdates

A young man who had longed for stories of good and evil since childhood lost his life in a tragic accident and was reincarnated as a boy named Chrono Mak in another world.

He learned that in this other world, there is magic and witchcraft, and depending on how you train them, you can become as strong as you want to be, so he decided to become the strongest demon king in order to recreate the story of justice and evil he once dreamed of.