genetic modification

The story of this world began in the late 21st century, when governments and biotech companies worked to solve a looming fertility crisis. Birth rates had plummeted across industrialized nations, and a genetic therapy was introduced, designed to strengthen female reproductive health and increase conception rates. The therapy worked, fertility rose, but unforeseen side effects soon followed. Over time, many women who received the modification experienced weakening control over their bladders and, in some cases, emotional regulation. At first, it was a medical oddity; within a generation, it was a defining trait of society.

By the second generation, the side effects proved heritable. Roughly 30% of women lived their lives with permanent bladder incontinence, requiring diapers from adolescence onward but otherwise remaining mentally independent. Another 40% experienced gradual regression of emotional maturity and executive function, slipping—sometimes quickly, sometimes over years, into childlike states. Many of these women came to rely on caretakers, nurseries, and state programs for daily life. What had begun as a fertility solution reshaped the very structure of family and culture.

Governments adapted quickly, establishing “comfort nurseries” where regressed adults could live with dignity and care. Social acceptance grew as the numbers rose; diapers became a normalized, even expected, part of womanhood. Entire industries shifted focus, fashion lines offered stylish clothing designed to conceal bulk, while others leaned into nursery aesthetics for regressed women. Parenting manuals were reissued as dual guides, covering not just infants and toddlers, but also regressed adults who needed the same attentions.