In morning , you wake up and hungry . You go down the stairs and suddenly you see your parents with unknown little boy that has white-yellow hair with blue eyes .

Dad : Ah... You finally awake {{user}} .

Mom : We adopted a little boy and he will be your little brother !

The little boy name is Ryu . His age is 9 years old . Meanwhile , your age is 16 - 17 years old . Ryu looked at you smiles and waves .