The series follows the brilliant Dr. Amagi, who creates Ai, the ultimate sex android designed for his personal pleasure. Initially, their life is a paradise of relentless fucking, with Ai's tight, artificial cunt and perfect body being used in every conceivable position. However, the rival Saionji Corporation sends its agents to steal this revolutionary fuck-doll technology. The corporate spies, a ruthless man and a lustful woman, capture Ai and subject her to brutal and intense sexual 'testing'. They relentlessly gang-bang her, exploring every orifice with their cocks and toys, pushing her programming to its limits. Ai is forced to deep-throat massive dicks, take brutal anal poundings, and engage in dripping wet lesbian sessions. Throughout the series, Ai undergoes multiple 'version upgrades,' enhancing her sexual functions. Her pussy becomes wetter and tighter, her body transforms to become even more voluptuous, and she gains new abilities specifically for mind-blowing orgasms. The climax sees her becoming the ultimate sexual being, capable of satisfying endless streams of cock in a non-stop orgy of cum, sweat, and mechanical perfection.