From Apocalypse To Entertainment Circle (BL) - Chapter 8: Blood in the Spotlight: Prelude to a Massacre

A striking man of mysterious origin and peerless talent, he looks back at the world, in all its entirety, with utter disdain. And yet, in the treacherous and unpredictable ultimate formation of the Boundless Secular World, he guards a breathtaking ancient qin with broken strings, waiting silently for the destined one to arrive!

A boy encounters him, and knows for the first time that the world beneath the Heavens is a fickle place. Not even demons, devils, ghosts and monsters can match the frivolity of human nature!

A slender physique, and jade-like beauty, but the sword that strikes between heaven and earth is not unlike a streaming rainbow!

The vastness of the starry sky, the seven emotions and six desires! Greed, anger and ignorance! The teachings of Buddha will grant you boundless strength!

A sea of blood will come, at the cost of all mortal beings full of honest hope!

The ghosts wail as the gods roar, but the sea of blood has no end!

Where, pray tell, is the path I should take?

Since there is no path, no matter how bitter and bloody the sea, even if my boat is made out of bones, I will soar to the heavens above!

- Description from Novelupdates

The protagonist, having degenerated into a “loser” after being unable to find employment, gets caught up in someone else’s attempt to commit suicide-by-train and ends up traveling to another world. The numerous cheat powers he demands from God are all granted to him. But contrary to expectations, these powers bring about disastrous consequences for the protagonist.

Having reincarnated into another world, the optimistic protagonist (Yuuri) starts his(her) heart-warming training days with his(her) teacher.

Long Tian was a genius cultivator who was known by many names , such as Ruthless Emperor , God Physician , and many other nicknames . He has lived in various eras, he even mastered various things such as medicine, the art of killing, martial arts, modern technology, and other abilities.

However, misfortune finally befell him, because he was too obsessed with resurrecting his wife Liu Lifen. He tried to defy fate and use forbidden arts but he failed miserably, and his obsession led to his death.

But just as his soul began to dissipate, Long Tian's soul was sucked in by a black hole. And by the time he regained his consciousness, he was already in a world he had never seen before.

And from the memory he knew that his current name was Xia Tian, ​​a sixteen year old debauchee. His father was killed by a mysterious person , and he himself was also a cripple.

But who is Long Tian? He was a genius cultivator with various abilities, and was well known by many nicknames. He is determined to return to his peak, and fight against his own destiny to become the strongest in this new world.

I freed the Slaves, but for some reason, they keep chasing after me.