The Black Book: Seven Deadly Sins - Chapter 37, The Page of Mirrors

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

Hakuto's life changes forever when his father Shin— a man with highly questionable morals—marries Kagura Kurotsuki, the CEO of a multinational company, and they move into her luxurious mansion.There, he meets the alluring daughters of his new stepmother: the seductive Yuzu—who doesn't hesitate to tease both her new stepbrother and her stepfather in ways that are... rather bold—and Rika, more introverted and irritable, yet just as sensual.But nothing is truly as it seems...Kagura is a succubus, but Rika and Yuzu are different.They were born from a demon and a vampire—something that shouldn’t be exsiste.Because of that, demons, vampires, even humans want them.But Hakuto won’t allow it.He’ll never let anyone hurt his beloved stepsisters.

The notorious imperial court lackey and the meritorious military general were well-known for their mutual dislike, a pair of arch-enemies set in stone. Who could have foreseen the unexpected change in the winds of heaven: the general injured on the battlefield, both legs disabled, and even forced by the emperor to marry his nemesis.  

With one marriage edict, two people with mutual hostility are forced to marry and live under the same roof. Yet after these long days together, they come to the realization that this fellow is not truly devoid of any saving grace/unattainable and high out of reach.

- Description from Novelupdates