The ultimate fainting experiment series evolves in a new direction. This installment introduces the method of knocking a woman unconscious by punching her head, shaking the brain, and thoroughly examining the female body's reactions during such states. Boxer-trained Haruka Rei precisely explains the key points for knocking an opponent out, carefully observing the right moment to distract her partner's attention through conversation and gestures, then delivering a punch to induce unconsciousness. Afterward, the unconscious female body is meticulously analyzed and explained, including checks for sexual responses triggered by stimulation. Koizumi Nozomi regains consciousness and recounts her experience to the extent of her memory. Then, the two women alternately punch each other, repeatedly knocking one another out. The film reveals every physical, mental, and genital change resulting from this extreme process. (Note: Do not attempt this in real life.)