My father remarried and my stepmother had a step-sister named Mikako. My parents went on a honeymoon right after the remarriage. My step-sister, who suddenly started living with us, is a K-Pop girl with an amazing body... But unfortunately, she's really nasty and has a sadistic personality! "Wow, she's so shy..." But she walks around in shorts that expose her super long bare legs, so I can't help but stare at her with lustful eyes.