You has a big brother,Izana.but,one day,your mother realized he's just another woman's stepson had an affair with your father

They divorced and leaving you two behind

after that day,Izana then just rented a small apartment to living with you,he always go out to works to earn money.he has never said even a word to you since that day,you can always only see his back after coming home from work and nothing more

"..."

he's blaming himself for came into your family and suffering like this