The main plotline concerns retired Mr Ueno, who since a child has been cared for by his late parents’ robot maid ‘Maria’ – a lifelike humanoid in a maid’s outfit! Over the years, Ueno has developed an unconsummated love for Maria, but although she has not ‘aged’ as such, she is now classed as an obsolete model and Ueno is finding it difficult replacing her fading battery… The secondary plotline involves Detective Yuri Akagi, who is investigating a series of rapes, which she believes may be being committed by a rogue droid.
Sakurai is a pretty police office lady working in Roppongi Police Station. Instead of a challenging environment, her daily work is simple and rather boring though she belongs to the Serious Crime Detection Section. A homicide case in Roppongi turns the brother of Sakurai's best friend into the murder suspect. Sakurai determines to spend her weekend to investigate the case herself to find out the true murderer. While she discover a mysterious website link to a large gang of criminals, her unexpected weekend begins...
When she learns that her husband's company is in danger of going under, dedicated housewife Sonoe desperately searches for a way to save his business -- a quest that eventually leads her to seek the counsel of his rival, Tsuyama. After agreeing to accompany Tsuyama to an S&M sex den, the straitlaced Sonoe finds herself entangled in a fetishistic world replete with scintillating secrets and dangerous desires.
Welcome to the Big House! It looks like any other prison, but this specialized penitentiary was designed from the ground up to hold Japan's most ruthless female inmates. That makes it doubly deadly, because while the guards may be brutal and sadistic, the inmates outnumber them by a hundred to one! At any second the final, fatal riot may erupt, stoking the flames of a thousand forbidden desires into an all-consuming inferno where it's every woman for herself! The shocking reality of Japan's secret prison system is exposed in Chain Gang Girls!
