A Hentai System in the World of Danmachi - Chapter 213 - 212 - Takemikazuchi.

When Jiang Cheng was told to return to a family that he never knew or had a relationship with, he had never expected to end up meeting a young girl, and eventually, her seemingly roguish brother Gu Fei, as a first encounter in the new city.

Emperor Yongning liked his daughter, but he gave birth to eighteen sons in a row. For this reason, he specially asked the master to fortune-telling. Did he have a daughter?

The master told him, “Your Majesty, you have a daughter, and the daughter was born long ago.”

Emperor Yongning waved his hand and said, “I only have eighteen sons and no daughters.”

Master: “No, you have only seventeen sons.” The other is a daughter.

Emperor Yongning: “Absolutely impossible.”

Until one day, Emperor Yongning saw his eighteenth son Jun Ning, wearing a double-ring bun, wearing a pink skirt, pretending to be a little girl, and excitedly said to him: “Father, I am It’s not the prince, I’m the little princess you always miss!”

Emperor Yongning: “…What nonsense, you are my son.”

Jun Ning: “No, I’m your daughter.”

“Come on, give me a medical examination!”

After the test, it turned out to be a daughter.

Emperor Yongning: He, he has a precious daughter.

- Description from novelbuddy

Su Yun was a prodigy, blessed by the gods. However, life is never so easy. Soon after reaching 6th stage in spirit novice realm cultivation, his progress stagnated due to incurring a rare medical condition.

It was a time where demons roamed the earth and chaos reigned. The story took place in Luoyang, the legendary capital of the times. During the night, one could find people holding on to their food with dear lives as they faced off against stray dogs, people with weapons in hand vowing to fight against Fate to their very last breath. There was bloodshed everywhere as some died meaningless deaths, while the strong tyrannized the weak and the truth was frequently hidden. Some of the citizens had completely lost their mind, while some died on their travels. Most importantly, the words of a certain youth caused much panic in the human world. It was a time of little warmth as nights in the capital were frequently accompanied by gusts of wind and rain, and it would be covered with snow during winter. Such were the days…

- Description from Novelupdates