My neighbor's sister, Karen, has always been unfriendly, cold, and scary, so I'm not good at it... However, my parents are on good terms, and my parents decided to take care of me for a week while I went on a trip! Contrary to her blunt attitude, this older sister is somehow making me a slut! Watching my AV without permission, calling me to the SM club where I work part-time... and then I suddenly notice. Sister, are you really talking about me...? Living together with a tsundere busty sister who experiences completely subjectively and is a slut!
