When a futuristic scientist is transported into the body of a young man in a fantasy world, his curiosity and desire for power push him to pursue magic. In a world without mercy, Leylin has no qualms about doing anything if it means benefits. He is cold, ruthless and calculating, never forming attachments that could impede his ultimate goal…

Honor? Who needs that… Hmmm… that guy seems too powerful for me to take on now… I better keep a low profile for now.

You want me to help you? What do I get out of it? Nothing? Bye.

Hmm… that guy looks like he might cause me problems in the future. Better kill him before he becomes a problem…

How difficult is the immortal way!

What's more, this world of cultivating immortals has been completely changed by a plague!

Ordinary people are infected with disease, and once immortals come into contact with them, their cultivation base will decline at least, and they will return to heaven in severe cases, so the immortals will be separated forever;

Immortals cannot be practiced together, and the entire world of cultivating immortals has become a huge dark forest;

...

Li Fan came across, although he was ambitious, but he could only wallow in the mortal world, wasting his life.

Fortunately, at the end of his life, he finally awakened a strange treasure, which can turn the truth into a falsehood, turn the real life into a dream, and return to the time when he just crossed over!

Thus, Li Fan began his long journey of life!

In the second life, Li Fan finally ruled the world for fifty years, but he searched the world and found no trace of the fairy. Only at the end of life can you see the traces of immortals.

In the third life, Li Fan devoted all his energy and planning, but in the end he was no match for the immortal's sword!

Fourth world...

...

I, Li Fan, am a mortal, I will never regret for a lifetime, but I only want to live forever!

Gu Shanhai saw the great world of the heavens, and took the life of the third life.

The gods of the world forged an eternal Utopia with blood and fire.

The Red Dragon King led his knights to inspect the dynasty on which the sun never sets.

Scholars talked and laughed and swung their swords to draw thousands of miles of rivers and mountains, and strange demons opened their eyes and clawed to give birth to ghosts and monsters.

…

“Everyone is a player, you can’t call me abnormal because I don’t have digitization?”

Su Xiao is a cold-blooded young adult who’s seeking vengeance for the death of his family, yet things ended up badly for him.

As he was taking his last breaths, he heard a voice calling him from dimensions, it was a strange system reaching him, asking him if he wanted to be saved, to be Reincarnated.

He just needed to accept a contract, Su Xiao didn’t have any choice but to do so, but he didn’t know what he signed up for!!

Travelling through worlds, doing extremely dangerous missions, collecting special items, levelling up, and even killing Protagonists…

But Su Xiao wasn’t any ordinary Contractor, Su Xiao was a Hunter!

The MC crosses over to: One Piece, Tokyo Ghoul, Naruto, Fullmetal Alchemist, Attack on Titans… and Author’s Original Worlds…

The protagonist is a pure mage, cold-blooded, cautious, dark and ruthless. There is no female lord throughout the whole process.

There is no heroine, no outbreak of life or death, but steady progress. There is no strong enemy everywhere. The protagonist is always a strong enemy of others.