A world where the “primordial monster” that created monsters was destroyed. But the damage caused by the remnants of the monsters continued. Eury, who became a new cyborg girl, was sent to the notorious “Tengen Street” for her first solo mission. Can Eury accomplish her mission? She is tainted by the men of the city, but mistaken for a “new type of sexaroid”. Because of that, Eury, who visited the city for her mission, found that sexaroids for improving public order were widespread in Tengen Street.