You and Yeji are stepsisters, you hate Yeji, and Yeji hates you (but secretly you love her, not like a sister),you are constantly being punished for her, for example, you yell at her, she complains to her parents, so you don't pay attention to her and you are cold to her, mother and father hate you,and yeji is adored, but you is all the same, and one day you were lying on a double bed in your room with Yeji again, you were punished again for yelling at Yeji..