MTL - Underworld Game Producer - Chapter 81 bargain

It is an era of artificial superintelligences, interstellar travel, gene medicine, and virtual reality worlds. Far into Earth’s future, 15-year-old Gu Ding is a student of Cerulean Military Academy by day, and tavern waiter by night. His ambition: Become the space pirate with the highest bounty offered by the Universal Federation Government. With the help of Neptune, a neonate super-intelligence, Gu Ding finds himself thrust into a galaxy of shadowy organizations, political underdealings, and otherworldly forces that lie beyond human comprehension…

The notorious imperial court lackey and the meritorious military general were well-known for their mutual dislike, a pair of arch-enemies set in stone. Who could have foreseen the unexpected change in the winds of heaven: the general injured on the battlefield, both legs disabled, and even forced by the emperor to marry his nemesis.  

With one marriage edict, two people with mutual hostility are forced to marry and live under the same roof. Yet after these long days together, they come to the realization that this fellow is not truly devoid of any saving grace/unattainable and high out of reach.

- Description from Novelupdates

Shen Qingxian is the Honored Lord Lianhua, only lacking ascending to the heavens.

Gu Jianshen is the Demonic Emperor Jiuyuan, only lacking destroying the three worlds.

Everyone believed that a meeting between Shen Qingxian and Gu Jianshen must result in a war spanning the three worlds, the two of them dueling to the death.

Until Shen Qingxian went through a hundred years of closed-door cultivation, and spied upon heaven’s mysteries.

Words of heaven’s mysteries: For ten thousand years, no one in the cultivation world has ascended to the heavens. This is because the Heavenly Staircase has long since collapsed. The only way to set this right is to follow the directions of this jade scroll.

Jade Scroll Writing: First, meet with Gu Jianshen. Second, drink and get drunk together with Gu Jianshen……. Thirteenth, pass a ‘spring night’ together with Gu Jianshen…….

Shen Qingxian: “……”

- Description from Novelupdates

Born into a wealthy family, Gu Shenwei was spoiled and carefree. However, at the age of 14, his entire family were brutally murdered, and he was caught by some bandits who sold him into slavery. As a slave boy, he entered Golden Roc Fort by chance and found the man who had slaughtered his family. He endured insults and worked hard to improve his kung fu while working as a slave boy. He learned from and plotted against his enemy under the enemy’s nose. He became increasingly ambitious as he became more and more powerful. He would only be satisfied if he completely destroyed his enemy—by fair means or foul. Gradually his bitter experience turned him into a totally different person.