MTL - Rebirth: Noble Woman, Poisonous Concubine - Chapter 37 Overhear

Over a million years ago, the first human contracted with the first Spirit. Ever since then, Spirit use has become commonplace. Humans used Spirits to carry items and start fires. Eventually, even start wars. Thousands upon thousands of years past and one day, one human did the impossible. He transcended his mortality and ascended to the realm above.

Ling Xiao was a powerful martial expert who fell in battle and was unexpectedly transmigrated into another world. He began life anew in the body of a boy with the same name, a fallen genius of the Ling Family whose cultivation had been crippled in a surprise attack, and son to a father who had also suspiciously been crippled under similar circumstances. Armed with knowledge from his previous life, Ling Xiao aim to restore his strength and establish his place at the top of this new world

- Description from Novelupdates

This book is about baby-making.

I was a blind massage therapist, and I had come to the big city to work with Aunt Wu and Wang Xiru, but they always thought I was completely blind, often doing embarrassing things in front of me, even making some inappropriate demands...One, a charming mature woman, the other, a cool and aloof lady, every night I was tormented by them, unable to sleep...