Hitomi's sister at the neighbor's house has always been unfriendly and cold, and I'm not good at it ... However, my parents are on good terms and my parents will take care of me for a week when I go on a trip! An older sister who is actively involved in contrast to her blunt attitude! Watching my AV without permission, or rushing into the bath with swimsuit ...! And suddenly notice. Unnie, actually about me ...? Living with Tsundere huge breasts Hitomi sister who experiences completely subjectively!