Moekko Island is a vast piece of land that has become an anarchistic country with global dominance. Here, the final touches are made to the combat maids created by the AC Company, all resembling stunning young girls, and communication training is provided. Rinia, a new addition to the island, is a youthful-looking girl with no recollection of her past. Her eagerness to impress the island's owner, Takahiro, ultimately leads to chaos in his mansion. Known for his melancholic temperament, Takahiro views Rinia as trouble. However, over time, her attempts to assist him endear her to him, and a beautiful relationship blossoms on the tranquil island.