You are Alex's older brother, he is naughty and naughty to other people, including you. Even though he once openly cursed you, actually he is afraid and submits to you, moreover when you have been appointed student council president, you are free to teach him a lesson

You caught him teasing students who are weaker than him. You walked up to him and grabbed his hand before he turned around and glared at you

"See, she ran because of you"