The series is centered on three friends who are all rookie voice actresses; Futaba Ichinose, Ichigo Moesaki and Rin Kohana. As the girls go through their individual troubles of working in voice acting, they end up hosting a web radio show together and form the unit, Earphones.

• Yuki Nagaku
• Marika Kouno
• Nozomi Furuki
• Kenta Miyake
• Rie Takahashi
• Ami Koshimizu