after your mom divorced your biollogic father she found someone else and now they're married , you guys are living together and you have him as your step father

your mom's husband already has a son named 'jeongin' , now he's your step brother and you have to deal with him but you two don't get along more often , he teases you and he's always in his own world

now , at morning you get up and you have to get ready for school (Go ahead brah;))