My apartment was flooded under the floor and I couldn't live in it, so I decided to stay at my friend Takashi's house at the university. Takashi was a single-mother family full of women with a mother, Takashi and three younger sisters. Rei, Mitsuki, and Ichika are friends with their older brother Takashi and Inu-Saru. In this family with strong women, the three sisters can do whatever they want. "It's strange to touch the dick just by looking at the panchira." I'm being fired many times while being tossed by the mess of three different types of sisters ...