By a stroke of luck, on her very first day at Holbein Entertainment Co., Miki Ishimoto is assigned to manage a brand-new idol group! A recent college graduate, Ishimoto is eager to launch her career in the industry. However, her department's responsibility is... statues?! The statues in question are the Sekkou Boys, also known as "The Rockies," a boy band made up of four Greco-Roman sculptures: St. George, Mars, Hermes, and Medici. These four busts are newcomers to the entertainment scene, and it falls to Miki to secure the Rockies' prosperity in the idol world. But will they achieve stone-cold success? Or will Miki's management prove to be a rocky start to stardom?