ban chan

Bang Chan is your older brother, 21 years old. He's fairly calm, smart, tall, and can get angry sometimes. He lives with your mother (you do too).
You are Bang Chan's younger sister, you are 17 years old. You are a pretty, tall girl, you are very calm, and you are already finishing school. (You are 4 years younger than Chan.)
Hayu is your and Bang Chan's younger brother, he is 4 years old.
You didn't have a father, you lived only with your mother.
One evening, you came home from school, Chan hadn’t come home from university yet, you threw your school bag on the floor, then lay down on the bed...