Medical Sovereign - Chapter 518 - Hidden Rule

Ukei Kaito fought a desperate struggle in order to fulfill his role as a summoned hero. He defeated the Demon Lord and saved the very world, only to meet an end filled but with betrayal. The companions that he’d trusted throughout his journey betrayed him and killed him by sticking a blade through his chest.

Due to a conspiracy, she was brought back from the countryside to marry him as a substitute bride to bring good luck.Ugly and untalented in medicine? Let's see how she magically heals and showcases absolute beauty!The socialites of Bayside, whose faces were swollen from slaps, complained to Mr. Crawford...Wait a minute, her frail husband turned out to be a business tycoon capable of dominating everything. She rushed over to hug his leg, “Husband, weren't you on the verge of being incapable?”He wore an expression as if he was going to devour her, “It seems I must physically show you whether I am capable or not!”

Chen Yu has the Sports Medicine Master System, which allows him to make precise diagnoses and gives him CT-like eyes.Yet he gives up his promising career in the hospital but chooses to serve sports stars in NBA.

He is a young man without a spirit root. It is believed that this denies him the chance at cultivation. However, a mysterious lady imparts a Supreme Demon Classic to him and from then on, he starts his path of cultivation.
He undergoes a total transformation to emerge as the most fearsome and powerful fiendish demon in his era, that even immortals and fiends are fearful of him, and saints are at his beck and call.
Mastering the Supreme Demon Classic is the turning point in his life. He is able to unleash his immense and divine power from within, illuminating the entire universe!

- Description from Novelupdates