Kill That Siscon

After killing her older brother, Xiao Chao was cursed by a god. In every lifetime, she would die at her brother's hands.

Knowing that her death was inevitable, she harbored an intense hatred for her brother in every life. She framed him, set him up, poisoned him, and stuck pins in a doll bearing his likeness. To outsiders, she was the very picture of a selfish, scheming villain, a brother-hating maniac. But the brother in each life seemed to grow stranger and stranger.

[Pureblood Sister]

As the youngest of the Kuran family, Xiao Chao watched her pureblood brother tell stories to her older sister with such tenderness and patience, play with her, and stroke her head. The youngest sister sneered, making no effort to hide her hostility. She called him a sick pervert and a disgusting doll, mixed holy water into his food, and stuffed a silver crucifix into his pillow. Even when her older sister tactfully asked whether they had quarreled, Xiao Chao still wouldn't let up.

In this life, her brother's coldness and indifference toward her were plain to see. After a fierce battle of wits, her sister became human, and Xiao Chao was dragged off to attend Cross Academy. They tormented each other until the entire school knew that Kuran-senpai had a domineering, obnoxious little sister. Even when a cup smashed into Kuran-senpai's head, he merely coldly confined her to her room. The relationship between the siblings was terrible and twisted.

Even Xiao Chao thought her brother hated her, but couldn't kill her because she was pureblood. So she turned away to feed on a human. Just as her teeth sank into the human's neck, someone grabbed her chin and yanked her away.

"Didn't I tell you not to eat unhealthy food, Xiao Chao?" Her brother looked at her, sighed, and undid the buttons of his shirt.

"Disgusting." Held down by the head and forced to drink blood, his sister wore a look of utter disgust.

Her brother's smile never changed. "Even if it's disgusting, you have to swallow it. If you spit it out, I'll fill your mouth with blood until your vocal cords, windpipe, and esophagus are so swollen you can't swallow anyone else's blood."

Xiao Chao: "..."

[Strongest Sister]

The youngest daughter of the Gojo family couldn't see, but she could sense everything. Compared to her genius brother, who was practically a monster, everyone thought she was a flawed, useless little sister.

At first, the siblings detested each other at first sight. They traded barbs whenever they met. At night, the sister would try to assassinate her brother; he would secretly switch her food around and send her to the hospital with an allergic reaction. They turned the Gojo household upside down and made life miserable for everyone. One day, a classmate visited the Gojo family and saw his best friend's pretty little sister snort, kick over the dining table, and dump the food on his best friend's head, only to be stopped by Infinity.

The strongest brother clicked his tongue, took out a cursed tool, and deftly tied his sister to the bedpost, then snapped the lock shut. His best friend looked at him like he was a pervert.

"Xiao Chao has a nasty, mean-spirited personality. If I don't keep an eye on her, I can't sleep at night," his best friend said.

"But she can't see. I feel kind of sorry for her."

After the Cursed Spirit Manipulator said that, his best friend gave him a look that said he was an idiot. That night, he rolled over and opened his eyes to see Xiao Chao crouched beside his bed, eyes closed, trying to stab him with a knife.

Her brother reached out, scooped her up, and stuffed her under the covers. He rubbed his temples and said ominously, "Didn't you say you could only kill your brother, Xiao Chao? Or are you going to say you mistook me for your brother again? Wasn't it enough that I became your eyes?"

Xiao Chao: "..."

[Assassin Sister]

[Russian Onigiri Sister]

[Evil Uchiha Sister]

...No matter what she did, whether she framed him, drove a wedge between him and others, or nearly got him killed, her brother would grip her chin and wrist and tell her casually to stop causing trouble for everyone else. Who else but him would put up with his sister's awful temper?

Brother: My sister is mischievous and always goes out of her way to cause trouble just to get my attention. She's still too afraid of being lonely. As her older brother, I have to protect her.

Sister: When are you going to die? If you don't die, I'll die.

Bystanders: Just lock them up together already.

In summary: My big brother is a siscon. It's so annoying.

Theme: Love saves the world