MTL - I Made Scientific Magic - Chapter 71 Confidential, it's all confidential! (Seek to follow up)

Gou Liang was originally a small office worker of the Space-Time Administration Bureau but because of a weird questionnaire, he was sent to multiple worlds in order to complete a mysterious and arduous mission — to use the correct posture to awaken lord god.

The Old Gods are gone. Lost and Forgotten, their honor shattered and their kingdoms broken by treachery.The Peace of the Myriad Heavens has been severed. And from the ashes of war and chaos, the Twin Towers of Babel have been created as a beacon of hope.Can Altair, a child born of the Old Gods whose name has long since been forgotten, survive, or will he be cast into the Nine Hells?***“So...” Arsene continued, enjoying his child's flush expression. “I've got a few things to teach you. What I'm about to give you is some peak wisdom. Think of it as my Ten Commandments: One, never trust a bitch with red hair. Trust me on this. Two, the pull-out game is not a real thing. She will get pregnant. Three—”“F-Father…”“ —Never get yourself more than one wife. It sounds fun. It is fun. But it's truly a nightmare. You better be writing this stuff down. This is some grade-A wisdom right here. Four.“...Please stop talking…” The Prince pleaded.“Shhhhh. Just let this happen. Four…Bro's before hoes isn't a thing. The hoes come first. Remember, Booty is more important than Wa— ”“STOP!!!!!”

Yo, Hi! I’m Frank, I made a deal with a demon to pay me some money for receiving a guest for a few days every week.
I had no idea about what I have done.
On May 1st, Conan ‘the God of Death’ came to my house. I was forced to let him in and we get involved in a criminal case.
On May 8th, Bruce Wayne ‘Batman’ came to me. I was forced to follow him to fight crime.
On May 16th, Hannibal Lecter, The Silence of the Lambs, came to my home. I can only say that I really can’t stand my guests.

- Description from Novelupdates

(Marriage first, love later, short-lived parents, 1v1 double cleanliness)

Du Jingyi braved his fate and married into the Duke’s mansion, becoming the daughter-in-law of a wealthy family.

The husband is Shang Shaoyu, the most popular god of war in the Daxing Dynasty at that time, but it is widely said that he is known as a wife-suppressant.

I thought it was a match made in heaven.

Unexpectedly, on the night of the wedding, Shang Shaoyu only had time to lift his hijab, leaving a sentence of “Cezhou is in danger” and left in a hurry for three years.

After the master returned to court, he remembered that he had a lovely wife in his house.

I thought she had been wronged, but I found that my beloved wife hiding in Xitang Courtyard was living a better life than anyone else.

Everyone in the Duke’s mansion was going through so much trouble, but she was the only one who was pampered…

Du Jingyi just wanted a stable retirement, but he was forced to kill everyone in the back house.

First, half of the bed was given away, and then someone squeezed into my heart for no reason.

Just before her fall.

The general, who had a hard face and a cold heart, had a gentle and charming smile.

He whispered in her ear: Madam, please have mercy…

- Description from novelbuddy