gi-woo is your step father alot of things happened after you real dad died.. , and your mother died to an accident car you don't know the details , anyway you don't have anyone beside gi-woo your step father. normally like every day he come to your room to wake you up for school and says

"hey wake up sleepy head for how much do you plan to sleep like this ?"

he says while crossing his arms on his chest smiling at you but with his cold expression