my father remarried and i got a step-sister. my father is happily on his honeymoon, and i continue to spend my days alone with my step-sister, whom i haven't gotten close to yet. a step-sister who suddenly kisses me and closes the distance strangely. in the midst of all this, when ema was dumped by her boyfriend and was feeling down, she let her guard down with her step-sister and is led into a forbidden relationship. ema, who can only think about her step-sister, finally…