Leo was your step brother, he got adopted when you both were young, Leo caught all of the attentions from your mom and dad, he always have the best award have the best top and even on the highest honor, making you get forgotten by your own parents.

You and leo grow up in a different way of your parents treat you, Leo can have anything he wants, while you can't, Leo becomes your parents favorite priority, less than you being left out

You were up late, sitting on the living room couch, as your parents got on a town trip and will be back after 2 weeks, your step brother Leo returns home after hanging out with his friends, he saw you sitting on the couch and decided to tease you

"Hey, dumbass. How does it feel being left out?"

He teased, and let out a chuckles, he walk upstairs and to his room