Become a school principal. Experiment by studying human society!

Walking around the city, you remembered that you had long wanted to visit Tamaki’s family, who lived not far from your home. Their family always seemed so detached from the rest of the world: the constantly busy father of the Bunmei family and the economical mother, a woman in her early 30s named Benika. They have beautiful girls: the athletic Daichi, the constantly reading Eika, and the curious and mischievous Miu. It's time to head to their home!