Kyoukai Senjou no Horizon - Volume 5A, Chapter 21: Close Centipede

Rainer, an amateur arcanist and college student, sought to create a new spell far surpassing the magic of the few he inherited from his grandfather. Yet the interference of an unknown event during the casting of his spell led him to be thrown through space and time.

streak of being publicly humiliated in every story route. In other words, he was the designated cuck of the game Academy of Roses.Too bad for everyone, Cassius is now possessed by Arawn—a burned-out gamer who just tried to kill himself after exacting savage revenge on his sister’s cheating husband.Waking up in the body of the most pitiful character in eroge history? Not ideal. Finding out his missing sister has also been isekai’d and is now pretending to be Cassius’s noble “sister” to avoid suspicion? Wild. Realizing she’s about to be married off in another forced engagement plot? Yeah, fuck no.Armed with system powers(everyone has it), broken stats(for your average joe), and a big 'sister complex'(Not Incest) on steroids, Arawn has one simple plan: Live a peaceful life with his sister, for it he would, Break the rules. Shatter the narrative. And if anyone tries to play the protagonist? Use them for his own plans.This time, the cuck’s got teeth. And he bites back—in the most painful ways.—————Warning: The MC is a villainous character, he is psychotic, manipulating, borderline insane and unhinged. So, please keep that in mind

In order to take away her father’s shares, her husband colluded with her bestfriend to set her up. A divorce was thrown at her face and she was forced out of the house.

Four years later, she returned with an adorable treasure. With his hands wrapped around her waist, her baby son said, “Mommy, I heard that it’s the trend now to have a godfather. You wait, I’ll find one to support you!”

A few days later, her son brought back a super handsome guy who looked exactly like him.

“Mommy, don’t worry, I’ve checked. Dad ranks first on the world’s richest list and is able to deal with all kinds of disapproval!” Her son said confidently.

Cheng Liyue: “…”

Looking at the startled woman, Gong Yexiao coldly threw out a paternity test, “Woman, when did you steal my seed?”

Cheng Liyue was furious. Which bastard was it who slept with her four years ago but did not assume responsibility for it?

- Description from Novelupdates

Baek Yigang is a son of the Baek Clan, one of the seven great clans of Zhongyuan. Afflicted with the Taiyin Qi Blockage, he is cursed with a shortened lifespan and the inability to collect internal energy. He had been peacefully spending the rest of his days indoors when he was ambushed by a group of masked people. During the ambush, he lost his servant who was like a sister to him. Chased by the attackers, Baek Yigang escaped through a secret underground path. When he came across a blocked path, he decided he’d at least die fighting and picked up a rusted sword that was stuck in the ground…