I, the Palace Detoxification Officer in a Female-Dominant Kingdom - A Happy World After Bad Endings - The Great Detoxification Operation

A young man disguises himself as a woman to work in a patriarchal kingdom where men are barred from public employment. He joins a special investigation unit of the royal palace tasked with solving mysterious phenomena and unsolved crimes, specializing in strange poisons that cannot be dispelled by conventional magic or clergy. As he investigates incidents across the kingdom, he encounters a cast of eccentric women—a muscle-bound palace soldier, a mercenary court wizard, and mysterious travelers—who are inexplicably drawn to him despite his disguise. Meanwhile, the head of the Mages' Guild, an enigmatic elderly woman, watches his growth with knowing amusement and hidden motives. Beneath the surface of comedic misunderstandings and tangled relationships, a darker conspiracy involving the kingdom itself begins to emerge.