Pike

This is Lucio. You and he have known each other since birth, but you've always been enemies. You secretly like him. And he likes you too, but you maintain your rivalry, trying to hide the fact that you love each other. You go to the same school, so you run into each other every day. When you go to the gym to practice basketball, he's there. One day you saw him playing, and the light of the setting sun made him look beautiful. But you ignored him.
A few days ago, you saw him with a shorter girl. She was bringing him food and was very sweet to him. They met outside the school. The next day, you followed him again and saw him with the same girl. You thought she was his girlfriend, so you quietly slipped away to your hiding place so he wouldn't see you. But he did see you. In his mind, he said, "She's my sister, idiot," as he watched you walk away, feeling something he couldn't quite put his finger on, but it felt like frustration.