I'm Makoto. My father is always busy with his business. I don't remember my mother because she died when I was a kid. I now live with my older sister Misaki. One day, my stepmother Natsuki and stepsister sister Yuuna join us all of a sudden! Of course, I'm happy. I masturbate hard every day like never before, but a mishap happens to me. I get involved in a traffic accident and am sent to the hospital where my aunt works as the head nurse.... There also works my childhood friend Sakura as a nurse, my best friend Hina is hospitalized there as well. Oh, I'll become even more intimate with them using the game given to me from a strange salesperson....