Sister is coming

The ordinary boy Mizuhara Tomoya (voiced by Teragawa Aimi) has always lived a peaceful life, but as everyone knows, his peaceful life is about to come to an end. After his father remarried, a girl named Ichika Mizuhara (dubbed by Juri Nagatsuma) became Tomoya's unrelated sister. What Tomoya didn't expect was that this seemingly gentle girl in front of him was actually an out-and-out brother-controller in his heart. In this way, Tomoya and Ichika's "cohabitation life" officially began. In addition to Ichika, Tomoya is also surrounded by a group of girls with unique personalities - Mina Fujisaki (voiced by Kido Ibuki), who looks harmless but is actually extremely sinister, Marina (voiced by Marina Inoue), who has blond hair and big breasts and has an unrestrained personality, and Hayasaka (voiced by Minami Central), who is extremely physically strong, lively and cute. With the company of these girls, how will Tomoya's life change drastically?