Takumi, my younger brother, got injured during the move. I couldn't help but feel my heart race when my sister Miku treated him more kindly than usual. In the new house, we ended up sharing a room, and I was confronted with stimulating sights like her in just a towel after a bath, her panties showing when she lay down on the bed, and her changing scenes. Gradually, Takumi's reason crumbled...