MTL - Stone Gambler (Orc) - Chapter 71 secret medicine plan

Hanjun, who used to live alone, wakes up in a strange, old church in a different world called Eorera. In this world, there are two gods: the God of Light and the God of Darkness. A thousand years ago, the God of Darkness created demons and attacked humans. The God of Light was nowhere to be found, and people believed they were abandoned.Hanjun finds himself mistaken for being the God of Light by an old priest who was praying for help against the demons. Even though Hanjun is not actually a god, he ends up in a divine body on a stone throne, realizing he has lost most of his powers. He decides to help the humans by recruiting players from Earth through a game he creates called “God's Games Online.”He sends out gaming equipment for free to a few selected players, who will enter the game to help protect Ulon Town from the approaching demons. Hanjun also creates a game system and an NPC guide, using the old priest named Barry to lead the players.Hanjun hides his true identity As “Holy Son” and starts preparing to gather faith and regain his power to protect the people of Eorera.

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

Wealthy, powerful and handsome; Gu Jingze is the cream of the crop in the entire country. Every guy wants to be him and every girl wants to be with him. His life is perfect… except that he has one tiny secret that keeps him from getting close to any woman—apparent impotency.

“Obtaining the topmost degree of talent in sword arts in the world requires giving up 72 years of lifespan, which leaves you with only five more years of your life. At the same time, you will never be able to feel love, kinship, and friendship, and you’ll end up leading a lonely life until your death, unable to procreate, or to have any descendants.“From now onwards, everything related to happiness in the human world shall no longer be of your concern. Are you willing to accept this?”“Hahahaha, I’m already alone bereft of all support, my hopes dashed to pieces, shouldering only absolutely irreconcilable grudge and hatred, why would I disagree? Why would I not want it? I couldn’t ask for anything better!!”His sword sweeps across the Divine Continent for seven days and nights, moving 90,000 miles through the starry skies, unhindered.He slays saints and buddhas in Heaven, slaughters demons and devils in Hell, sweeping away all the grievances in his heart.