The dorm setup cuts through idol anime melodrama. Twelve guys sharing one space means genuine friction, not manufactured conflict, someone's always in the way, someone's always tired, someone's always practicing at 3 AM. The music isn't layered on top of the story; it's what these characters are actually built from, and the Vocaloid producers behind the tracks mean every song lands with precision instead of filler energy.

Twelve young men share one dorm at Tsukino Talent Productions. They make up two rival idol units, Six Gravity and Procellarum, and each member represents a month of the year: December through May for Six Gravity, June through November for Procellarum. Their days are a balancing act between growing careers, school, and the ups and downs of living under one roof. When unit leaders Hajime Mutsuki and Shun Shimotsuki announce a joint concert called the Full Moon Festival, set a few months away, all twelve have to learn to work as one team to make it succeed. The soundtrack features songs by well-known Vocaloid producers.