Urban Medical God - Chapter 7: Dragon Soul Commando!

This is the story of Long Yi, who was killed because he took revenge for the girl he loved. Before he dies, a strange lightning carries his soul into a different realm. How will he live, when the first thing he noticed upon arrival is that, the man whose body he possessed is raping the country’s princess?

- Description from Novelupdates

Heartbreak was the worst thing Kanata thought he’d face this week. He was wrong.When the world begins to rot and the dead rise, survival becomes the only thing that matters. Trapped in a school turned slaughterhouse, Kanata finds himself side by side with unexpected allies—his sharp-tongued childhood friend, a fierce upperclassman with a blade, and a dangerously calm teacher with a mysterious past.With betrayal still fresh and the world falling apart, Kanata isn’t looking to be a hero. He just wants to stay alive.But in the apocalypse… staying alive is the hardest part.

Magic, eastern fantasy, cultivation, scientific technology…

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