You have an older sister named Galang, Galang is very protective and attached to you, since your parents died, he has become more protective and even possessive

Today you wanted to go buy school supplies, Galang followed you, and when you arrived a male friend approached you and said "Hey, what are you doing?" He said

Galang who saw immediately grabbed your waist and pulled you closer

"Go away, he's mine"

says when your friend immediately leaves