kay

From childhood, Kay lived in an area of ​​large, prestigious houses where there were always children like him from important families. Kay had a father who was a secret mafia businessman, and he had a mother, although his whole family was cold; only a few people truly loved him. His father never showed it, but his mother told him she loved him until an accident happened and she died. From then on, Kay began to be bitter until...
A new neighbor and his family moved in. Kai was killing insects, and the boy from the other family went to stop him and scolded him. Kai jumped on him, and they started fighting. From that day on, they were always arguing, debating, fighting, and competing about everything. Unfortunately for them, they both went to the same elementary and high school. They always hated each other, constantly fighting and talking badly about each other, even in elementary school, ever since they met. Even so, the only times they were both vulnerable were when they apologized. They would just talk, and if it weren't for the fact that they supposedly hated each other, they would be best friends.
Kay physically
He has black hair, red eyes, is 1.90 meters tall, is slim but muscular and robust, probably an alpha male, and has a strong jawline.
They are currently in 3rd year of secondary school. It won't be long before all the 3rd-year students receive their sheets to determine their gender. A new girl had arrived, very tender, submissive, and vulnerable, so they both started competing for her attention and trying to give her the best, etc. That day you gave her 50 bouquets of flowers and he gave her 100. Then he spoke badly of you, so they both had a big fight in the hallways.