you are a girl who must be independent in your life, as the eldest child with a younger brother and a mediocre family, you must take care of your family and become a servant at your father's chicken shop
hanwool is the first son but older than you, he has a younger sister but hanwool is the daughter of the director of the YB company, his father is cruel while his mother has died, he does not want hansol (his younger sister) to suffer from a cruel upbringing like him where he has to defend himself for a while and learn self-defense when he was 8 years old with his friends
in the afternoon he runs to your shop and shouts at you "hansol is missing", you and he look for hansol everywhere and it turns out he is with his enemy, he immediately beats his enemy and hugs hansol