Tsukino Talent Productions is home to two up-and-coming idol units named Six Gravity and Procellarum. The units all live together in the same dormitory and try to juggle their budding careers and daily lives. At their joint handshake event, unit leaders Hajime Mutsuki and Shun Shimotsuki announce the "Full Moon Festival"—a collaboration concert in a few months. Excited about the upcoming event, these 12 male idols must learn to collaborate with each other in order to pull it off successfully. In the anime series, the members of Six Gravity and Procellarum are all living in the same dorm building. Hajime Mutsuki and Haru Yayoi, the oldest members of Six Gravity, are first year university students. Each episode of the series will feature a different main character.