A rare traditional performance art called "Human Monkey Show," held only once every 50 years. Mizuki is stripped naked and forced to undergo harsh training not as a human, but as a monkey. Every time she fails to properly perform tricks like handstands, ball balancing, or tightrope walking, she is severely punished with deep throat, vibrator torture, and brutal piston thrusting. Defenseless, Mizuki cannot endure the training and climaxes intensely against her will. Yet, overcoming the rigorous discipline and training, she successfully performs the "Human Monkey Show" before a live audience. The once-in-a-lifetime stage—this moment is here!