Raising A Few Wives in a Beast Apocalypse - Chapter 230: Cynocephali...

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

A Professional Transmigrator meets a newbie Regressor.

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He lived an average, fulfilling life and died of old age. The next moment, he opened his eyes as the Princess of Asmaria.

While looking forward to his new life, he died again.

And so began his 151,897,914th life as Samur Eckart.

Samur is a Professional Transmigrator- or so he says so, as he gets transmigrated into a new world every time he dies.

However, each time, his memories return only moments before his death. If he successfully survives, he gets to live that life, if he dies, well, he just moves on to his next moment of death.

Once again on the verge of death as Samur, he’s saved at the last moment by a young boy.

Surprise, surprise, the young boy is a Regressor.

As a man of honour, Samur intends to repay his debt then leave because the world is too inconvenient to live in.

Well, that’s what he thought, at least, but the Regressor and his friends are kind of… weird, and he can’t seem to get away at all?

However, not everything is as it seems. Samur’s whims have made him the part of an eternal lie.

Shadows dance in glee as they concoct a requiem far grander than anyone can imagine, while the Lights tremble in delight as the apocalypse threatens the Universe.

The dies have been cast, the play has been written, the characters are on the stage, and the sacrifices have been made.

And so, it’s finally time to let this game begin.

Cho Ryu Hyang was good at math from a young age. When he enrolled into the The Theoretical Maths and Martial Arts School, the teacher, Jo Gi Chun, recognized Cho Ryu Hyang’s talent immediately and took him in.

I had been abroad to do medical volunteer work, when I was swept up in a civil war. I was killed by a rebel soldier, while taking a bullet for a patient. But when I finally woke up, I had become a child?!?And in front of me stood a destroyed carriage and a group of oddly dressed people, who were unconscious!“It’s just like a Murim world.”As I hurry to perform first aid in an attempt to save even one person, I realize that this world is that of [The Supreme Demon King], a Wuxia novel I’ve enjoyed reading.After meeting the rescue team of the ‘Three Great Doctors’, I found out that one of the person I saved was the protagonist of this novel, the future Demon King ‘Yeo Haryun’!“Hey, since I’m indebted to you for saving me, call me ‘hyung’.”For saving his life, I become sworn brothers with the future Demon King, and the White Dragon Godly Doctor, one of the most knowledgeable people around, recognized my potential and took me in as his disciple. This is the story of how I became the greatest physician in Gangho!