The main character of Miss Monochrome is Miss Monochrome. Monochrome, accompanied by her dear robotic vacuum Ru, aspires to one day be a beloved and renowned idol. And what beloved and renowned idol doesn't have their own nendoroid? In her attempts to receive her own nendoroid, Miss Monochrome becomes a nendoroid. Becoming a popular children's toy opens up her possibilities and allows her to participate in the Neighborhood Mascot Festival with the popular glasses-wearing alpaca, Daisy.