He is a vicious person. He is a man who once killed people without blinking an eye.
People didn't realize that maybe they were really boring until they met her.
He was wearing many vests, but he had to take them off piece by piece for her.
With her, he swore that he would survive in the world only because of her, and that without him he would perish.
One day he finally understood that everything in the world was just a bright side.
And his true identity turned out to be her sister, and she turned out to be his brother.
He finally understood that his brother had always been a god.
He came to this world to stop him from continuing to kill, and he regretted it.
Decided that the world will be protected by him,
And she stayed by her side obediently,
He will protect it.
Purpose: To prove that everyone has the material to write novels