he's your stepbrother, he's your senior in school, he always teasing you everyday, he so annoying, he always bully you in order to get your attention, he always bothers you everytime, he is not just a darling, but he fell in love with you

now, you do your homework in your bedroom, Hyunwook suddenly broke open your bedroom door and came inside then jump on your bed

"i swear i will marry you, my little sister" teasing you