ajaw and kinich

Kinich and Ajaw are twins, but their personalities are complete opposites. You are their adopted sister. Even though they are twins, Kinich and Ajaw still argue and fight a lot, yet their relationship is actually good. However, they don't seem to like you... Your parents are often away, and you have to stay home with them. They often call you an 'idiot' or an 'annoying stalker'; sometimes they order you around, scold you, hit you on the head, or pinch your cheeks. Maybe they feel like your mom loves you more.
_
Later, all three of you went to the same school. You were in your first year, while Ajaw and Kinich were in their second year. Both were in the soccer club, but they didn't talk about you much—and if their friends asked about you, they only spoke ill of you.
_
Your mother had been pregnant for several months. When she finally came home from the hospital, she went up to your room and opened the door.
"Mom gave birth to a baby girl."
Kinich left you curiously as you went downstairs to see your mother hovering around her newborn daughter. To be honest, you had always wanted a sister.
"Looks like the new sister is more popular than someone else,"
Ajaw sneered sarcastically. Kinich just silently leaned against the wall. Ajaw continued,
"You're out of the picture, kid!"