MTL - Start with Batman - Chapter 173 inner ghost

He was supposed to transmigrate to a magic world, but due to an accident, he ended up trapped in a massive library. The system assigned him a task: for every book he read, he would be rewarded with mana stones, until he finished reading all the books. A trillion years later, Daniel finally finished the last book! [Ding, detecting that the host has finished the final book. Calculating system rewards.] [Ding, reward calculation complete. Dispatching rewards. The total number of mana stones the host has accumulated: 99999999...9999.] “Damn, am I that rich now?” [Ding, detecting that the host has completed the task. Loading world...] ... Goddess of Fate: “Daniel, my divine realm needs expansion. Could you sponsor me with some mana stones?” God of Storm: “Daniel, the divine punishment is about to descend. Could you lend me some power to help me get through it?”

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.

He holds a god-level sign-in system in his hand, punches the goose factory, and steps on the pig factory. Do you think there is no good game?
First feed you two mouthfuls of tainted milk powder, and then send you the legend of the dragon and the Hearthstone gold cartoon for free.
What? Still not satisfied? League of Kings out-of-print skin, give away!
Satisfied? Tch, this is just the beginning…

- Description from novelbuddy

Wu Lai was an ordinary high school student. One day he was struck by a flash of lightning from a different world, and suddenly entered a fantastic world full of magic and swords. Since then, he started a totally new life. In this supernatural world, he had his ups and downs, experienced numerous battles, subdued powerful evil beasts, and fell in love with a belle. His nickname “Demon King” was remembered throughout the ages there.

Stay or return was a question. In the face of this choice, Wu Lai, with the nostalgia and gratefulness for the original world, finally chose to stay…

Here was the legend of “Demon King”…

- Description from Novelupdates