A freshly graduated manager gets assigned four literal stone statues as her idol group and has to make them work in entertainment. The comedy isn't about mocking them, it's about watching four genuinely strange personalities with actual chemistry figure out how to exist in a world they don't belong to. What hits is how earnest everything stays even when the premise is absurd, Hermes really does think he's a catch, Mars really does believe in love, and Miki really does care about getting them jobs.

Four plaster figures of classical statues make up the Sekko Boys, an unlikely idol unit also known as the Rockies. Saint Giorgio, a military saint, leads the group. Medici is billed as history's first celebrity, Hermes is handsome and multi-talented, and Mars, the god of war, is earnest about love. Their manager is Miki Ishimoto, a recent college graduate who is assigned the group on her first day at Holbein Entertainment. The four busts are newcomers to the entertainment world, and it falls to Miki to help them succeed as idols. The result is a short-form comedy with a musical bent about stone statues chasing stardom.