Since childhood, my mother had left home, and I lived alone with my father. One day, returning from my part-time job, I discovered my father in the room with another woman. The woman was AIKA, a flashy gyaru with painted nails, a tongue piercing, and tanned skin. She moved around the small room in typical gyaru fashion, carefree and exposed, swaying her ass in a thong. Before I knew it, I found myself consciously watching her. Then one night, the three of us ended up sleeping side by side in a row...