Rakuin no Monshou - Volume 2, Chapter 2: Days at the Imperial Capital

After ten thousand years of cultivation, he could have achieved immortality. However, his lack of human experience led to his failure to attain immortality.Thus, he resolved to immerse himself in a century of human existence, seeking to enhance his journey toward immortality. What he didn’t anticipate, though, was that upon entering the human world, he would find himself cast as a son-in-law, facing disdain not only from his wife’s parents but also from his beautiful wife herself.Armed with a wealth of cultivation knowledge, how could he transform his drab human life?

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

Lin Dong, who has mastered both the divine medical arts and martial arts, has traveled from the mountains to the city.With divine medical arts in his left hand and unbeatable martial arts in his right, he roams freely in the city.

Once went to Capital Academy full of dreams, but in order to save his younger brother from the interstellar pirates on the way, Fei Wushu’s sixth-level mental power broke out and even collapsed. After that, his right hand was crippled. Been on Capital Star.
However, ten years later, he died under the gun of his beloved younger brother. When he opened his eyes again, it was the moment when he had just received the admission notice from Capital College.
He will take back what is owed to him! What is lost, he will take back!
Whether it’s hatred or a dream, in this life, he just wants to live to the fullest!
Although this guy is an iron-blooded and tough guy, he is full of all kinds of idlers. In simple terms, he is a bandit and a hooligan, so don’t be fooled by the slogans this guy shouts→_→Go and mess with me happily, Brother Wushu~~
Qin Yi: What are you doing?
Brother Wushu from Mu Xiaxian: Hehe, this figure is really good, and the abs are pleasing to the touch.
Qin Yi: …
System: Players, please pay attention to the impact in broad daylight, and don’t touch your hands down!
Emphasis: This article is not an online game, absolutely not! Strong 1VS1, the author is glass-hearted, so there is no abuse in the whole process~ There are battles and bugs in the mecha, please enjoy looking far away…
  Lightning Protection Patch =v=:
1) CP: Young Master X Brother Wushu
2) This product is not an online game, absolutely not!
3) This article is not self-taught, everyone has their own body, okay [Helpfully spread your hands~~
4) Even if you want to know the follow-up, don’t let the code spoil it~ Mr. Truth’s guess is not the same concept as spoiling the code yourself = =
Search keywords: Protagonist: Fei Wushu, Qin Yi ┃ Supporting roles: Genius and passionate teenagers~~ ┃ Others: This product is not an online game…

- Description from novelbuddy