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…

One night a mysterious and unexplained phenomenon occurs in the nine provinces. Five years later Chu Feng, a regular outer disciple of the Azure Dragon school, awakens one of the mysterious nine lightning beasts. And discovers an egg sealed inside him.

From there we follow Chu Feng on his path of cultivation.

The most dependable (sarcastic) assassin — Gao Xuan. Developing himself with an inventory of powerful gear. A master of biding his time, backstabbing, and brutalizing weaklings. Don’t love me. Nothing would come out of this. I am an assassin without feelings.

- Description from NovelUpdates