MTL - Number One Player - Chapter 4 Demon king who conquered the world

In a world fractured by conflict and haunted by shadows of the past, Kokushibo—the first Upper Moon demon—meets his end, only to awaken in a new life. Reincarnated as Crimson, a child born into a different family, he carries the memories of a past he cannot escape. Burdened by centuries of guilt yet indifferent to the present, he resigns himself to duty—until an unexpected bond with his newfound family begins to thaw his hardened heart. As he struggles between the weight of his past and the weight of the new life, Crimson must decide whether he will remain shackled to his former sins or embrace the possibility of peace.

Zhang Gong decides to learn light magic, a magic few show interest in and eventually becomes the legendary Grand Magister. While trying to end the continent’s east and west separation in order to unite all of the different races, he becomes every race’s Child of Light.

There are five skills in Taoism: That is, spiritual practice, medical skills, numerology, anthroposcopy , and divination.

As a Taoist doctor, Zhou Jinyuan can tell fortune and save lives.

However, when a doctor can draw talismans and do alchemy, at the same time he is a very young… He has to prove himself is not a liar!

…

Zhou Jinyuan: Seeing a doctor? Wait for me to finish this talisman.

Patient (panic face): ? ? I’m sorry that I disturbed you.

- Description from Novelupdates

This is a story that follows the courtship between a stone from Hell and a god from Heaven that begins in the underworld and spans for three lifetimes in the mortal realm.