Ten years past, humanity saw the lethal power of armaments unleashed during the Great War. To prevent a repeat disaster, states across the globe turned to covert operations to advance their interests.
Within the Din Republic, Lily is a spirited youth who dreams of joining the spy corps to defend her homeland. Yet doubts creep in as she fails to excel academically. Her resolve rekindles when she receives an offer for provisional enrollment in the clandestine unit Lamplight, which she accepts with enthusiasm despite its mysterious allure.
Upon reaching the rendezvous point, Lily discovers six other girls awaiting her, each having endured similar scholastic setbacks. A shadowy figure named Klaus appears and informs them of an "Impossible Mission": infiltrate the Galgad Empire after merely a month"s training. Though wary, the girls consent to collaborate under Klaus" direction, believing this could be their sole opportunity to validate themselves as operatives. Their bond strengthens as they share past failures and future hopes, solidifying their resolve for the nation.
