After a genetic disaster made Y chromosomes incompatible with X chromosomes, male populations neared extinction. Scientists created YY males to ensure survival, banning natural reproduction and cross-gender marriages. Galtheep and Pran, genetically engineered YY males, were destined to be together. However, Galtheep fell for Saosamsai, a female musician, while Pran, a doctor, cared for Kaonmaek, a dying XY male, forming a forbidden bond. Their defiance of societal norms threatened the fragile engineered order. Torn between survival and love, their choices challenged humanity’s definition of normalcy, risking everything to redefine what it means to be human.