Based on the erotic game by Alice Soft.

Yamamoto Akuji noticed that the world is a totally different place after his release from prison. He experiences Osaka as something very new and strange after he got out of prison. During his imprisonment, the hierarchal structure flipped upside down, making it a world where the women dominated over men. Militia, churches, businesses and private businesses are operated by a female figure. Men were powerless, being controlled and enslaved by the women in Osaka. Being angered by the situation, Akuji and his partner Satsu begin their payback by teaching the stuck-up women in Osaka a little lesson...