Must-see for butt fetishists! No handicap for physique differences! They're all roughly the same height, with hips over 90cm! Four big-bottomed actresses compete in four different events! They make their entrance by shaking their butts in the Mon○Walk, and dynamically introduce themselves with butt-writing! Tsu○star game, butt muscle training, butt sumo! And finally, a big-butt bottomless lesbian battle! Whose butt will be crowned the glorious number one?!