MTL - I, The System Maker! - Chapter 6

Xia Yuqing is a shut-in+fujoshi from the 21st century. After an accident, she transmigrates into the body of a young princess forced into a political marriage to another country.

“W-where is all this blood coming from? Is this– Is this nose blood? AH, YOUR HIGHNESS! A-are you alright? What? No! You mustn’t! Princess Xia, please, come back!”

“… I… need… to… see…”

The aide could only helplessly look on as Princess Xia Yuqing crawled towards the emperor’s quarters, leaving a trail of blood in her wake.

Fujoshi: a term for a woman who enjoys reading about relationships between men.

- Description from Novelupdates

On the night of her coming-of-age ceremony, Nan Zhi is lured into a trap by the people closest to her and falls pregnant.

Four years later, she returns with her son.

A respected and domineering man suddenly barges into her world.

“Speak! Who is the child’s father?”

An adorable child holding a water gun appears out of nowhere, shouting, “Who is this wild man? How dare he snatch Brother Jie’s goddess?!”

From then on, two small domineering brats and a manchild are added to her world.

In the middle of the night, he sneaks into her room, pressing a heated kiss onto her lips.

“Woman, do you know what’s the result of stealing my seed?”

“What?”

“From now on, you have to let me kiss and pamper you everyday.”

Erm… How was her inability to walk the next day, the result of his pampering?

She found that her fiance was sick and squeamish, but it was a little expensive to raise.
The poor and poor high-level bosses have to make money to support their husbands while accumulating merits.
Then, he went to the construction site to move bricks and was caught by his husband. He set up a stall at the door to tell fortunes and was carried back by his husband. He went out to catch demons and was carried back by his husband.
The big devil is very distressed, what should my husband do if he always wants to keep her at home?
Yu Chao is rich and Huaizhi is helpless, what should the little girl always like to go to dangerous places?

- Description from novelbuddy

This story is centered around the man named Yi Ji-Hyuk, who has spent 1000 years in a Medieval Western fantasy-like world before returning back to the modern-day Earth. When he returns, he finds that his home is facing monster threats, and that humans with superpowers have appeared to protect the innocent people of Earth.