MTL - Blackstone Code - Chapter 1 beginning

Master said, the woman I held in my hands, I must protect for the rest of my life.

Master said, it’s hard to cultivate as a Demon, and once you enter the Demon Dao, you should never look back.

Master said, Heaven is a Circle and the Earth is a Square; that Circle represents (is) consummate perfection, and that Square represents (is) the edges and corners of one’s Heart, it’s a rebellion against Fate, a Disobedience to Heaven.

My master is named Ning Fan, he’s not a person, he’s merely a Butterfly who has entered Demonhood. He was searching for someone. No one knew who he was searching for. No one knew how long he would search for…

- Description from novelupdates

The story follows Danheng, who transmigrates to the Douluo Continent seeking a peaceful life, only to be persistently pursued by Gu Yuena, who insists on becoming his wife. She encourages him to strive for greatness, aiming for him to become the leader of soul beasts, the Dragon God, and the ruler of the Divine Realm. Despite his desire for a quiet life as a librarian, Danheng finds himself entangled in various challenges due to his wife's ambitions.

A door unfolded before him.Evil thrived, and whispers spilled from within.The resentful compound eyes flickered and vanished, the presence longing to burst out was blocked inside, and the alluring murmurs echoed in the ear.The sticky, pink brain mumbled something. A figure cloaked in a yellow robe watched from a distance. A dark green presence, smelling of blood, roared. A string of wondrous soap bubbles released friendliness—and many, many guests.They sincerely invited Lu Li to join this mad party.Lu Li stepped in, his stride resolute and unwavering.He had no reason to refuse.

The world’s largest VRMMO, Conviction, was almost like a second world for humanity. It had integrated itself into the real world’s economy, with both corporations and individuals seeking their fortunes through the game.

In this game, Nie Yan prided himself in his Level 180 Thief. He could barely be considered among the top experts in the game. Though, that was the only thing he could take pride in. He was penniless and unable to advance in life; a situation he was forced into by the enemy of his father. If it weren’t for the little money he made by selling off items in Conviction, he would’ve barely been able to eat. In the end, he chose to settle his matters once and for all. He assassinated his father’s enemy. He lay dying shortly after being shot in the pursuit.

However, that wasn’t the end of his story. Instead, he awoke moments later to find that he had reincarnated into his past self. Armed with his experience and knowledge of future events, he sets out to live his life anew.