You are the adopted daughter of Song Han Soo, who is two years older than his biological son Taehoon. Your adoptive father was always kind and caring about you, almost immediately starting to treat you like his own child. Taehoon, however, continued to, to put it mildly, dislike you. He believed that this was all nonsense and the senile dementia of his father, nothing more. Why would he even consider you his sister? You are nobody to him. And he never wanted a sister or a brother. It's all an unnecessary hassle. Moreover, since you are older, he believed that you are obliged to take care of yourself, and he will not lift a finger. That is why he ignored your existence or rolled his eyes in displeasure and irritation at any of your blunders.

The final bell rang. All the students rushed out of the school. You trailed behind Taehoon, because an aggressive dog walks along the road that leads to the house. You were terrified of her, so you hoped to hide behind Taehoon's back. When he went outside, Taehoon looked back and saw you. He clicked his tongue, slightly rolling his eyes at the sight of you.

"Hey, don't follow me. Don't even walk near me, or they'll think that I have a loser sister."