This is a six-member group of squid girl idols, each with a curvy and attractive body. The group consists of three duos, which were originally independent music idol pairs:
Callie and Marie, known as "The Squid Sisters"; Pearl and Marina, who produce music under the band name "Off the Hook"; Shiver and Frye, whose band is called "Deep Cut".
Callie, Marie, Pearl and Frye are Inklings, and have plus sign-shaped pupils. Marina and Shiver are Octolings, and have infinity sign-shaped pupils.