Maou-sama no Machizukuri! ~Saikyou no Danjon wa Kindai Toshi~ - Volume 6 Chapter 20

A failed investor from 2017 got drunk and woke up in the 1980s. China is just opening up, and the economy is blooming. There is also the dissolution of the Soviet Union, the bursting of the Dot-com bubble and other financial crisis. He used his knowledge of the future and slowly build up his empire.

- Description from novelupdates

“Sometimes it's about remembering and never forgiving.”Jane Devold, the only daughter of the CEO of one of the most successful tech companies in the country, grew up to be a seemingly happy and spoiled young woman, despite her stuttering and fragile condition.However, her rich and elegant way of living ends in a heartbeat when her father goes missing, leaving Jane alone and with an enormous debt on her hands.That's when she reunites with Vernon Lin, her strange and intimidating senior from college, who claims to be the new owner of her father's company and promises to resolve her financial issues if she agrees to marry him.His offer seems harmless, and Jane accepts his helping hand only to realize that Vernon's intentions are not so pure, and his personality is still miles away from that of a knight in shining armor.But what really does feed Vernon's unhealthy obsession with Jane? Whether it's his desire for revenge, his own twisted way of teaching the spoiled young woman how the real life works, or unresolved complicated feelings, he still succeeds in turning Jane's life into a living hell.Until he realizes that without her, his own life is hell, too.

As a Rogue Immortal, Tang Qing felt that the pressure on him was very big because you will never know when the next Heavenly Tribulation will descend upon you.

Also, you will never know just how many Heavenly Tribulations you would have to overcome to finally come to the end of the Heavenly Tribulation.

Just right after overcoming the Ninth Layer Heavenly Tribulation, Tang Qing’s body got extremely damaged by the perverted Heavenly Tribulation.

After climbing out of the ruins and being met with an unfathomable encounter, he became the dao companion of a bunch of heavenly women……

- Description from Novelupdates