MTL - General, Madam Called You To Farm - Chapter 20 Business

Died in the end times war, reborn as a commoner’s daughter in an ancient official’s family. The family scheming belongs to others, the fighting for favor belongs to others. Li Xia’s daily routine is just asking for monthly allowances from her auntie to spend on eating, drinking, watching opera, and living a carefree life.

After accidentally saving someone during the Lantern Festival, Li Xia’s carefree life is gone. During the day, she is a young lady of an official’s house who does not step out of the main or secondary gates, at night, she turns into a righteous hero who punishes villains and eliminates evils.

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

Hao Yan Che is an immortal and Yuan Gun Gun is a mortal.

Cheng Xi, a guileless psychiatrist with a heart of gold, who would do anything for her patients. Lu Chenzhou, a frigid businessman who refuses treatment for his emotional detachment.