Chen Ye, a disciple of the Jie Sect in the Shang Dynasty, tried to imitate Pangu's division into the Three Pure Ones. At the end of the Shang Dynasty, he failed his tribulation and nearly lost all his cultivation, only then glimpsing a sliver of heavenly secrets. To achieve the Dao, he must unite his three bodies.
This may be the 1950s, but I've got a System.
"Whoa, a Pangu System! Does it come with Pangu's blood essence? Heh, I don't need much, just eighty or a hundred drops."
[Pah! You transmigrators have no shame. All you ever do is covet that little bit of Pangu's blood. What am I, a blood-making machine? That tiny amount of Pangu's blood essence was picked clean by you shameless transmigrators ages ago, okay?]
When he arrives at Courtyard No. 95 on Nanluogu Lane and sees Silly Zhu, he is dumbfounded.
"Whoa, is this Silly Zhu, the original story's protagonist, with black qi pouring off him? He's practically the biggest sucker around."
"What? Old Deaf, your hearing is so bad you can't hear anything? Fine, I'll make sure you get your wish."
"Well, well, Yi Zhonghai, you're surprisingly kind! You're willing to pay for Silly Zhu and Yushui to live?"
The next second, Yi Zhonghai starts pulling out money in handfuls. "Chen Ye, take this. Please look after Silly Zhu and his sister. If it's not enough, come ask me for more."
Chen Ye looks up at the sky. Sigh, immortality is out of reach in this era. What's the point of uniting my three bodies?
That is, until a newly established special department of the new nation comes knocking…
There are many Siheyuan books, but this one is quite good.
Lao Jia Dongxu's stick figure