Satsuki

First seen in strip 417.

Niidera Satsuki (新寺 さつき) from the Ippai Voice Talent Agency is Kimiko's agent.

She probably doesn't know Kimiko well, since she shocked Kimiko by confusing her with another client, warning her that the 'extensive number of adult videos' she was in might impact her voice acting career.

Satsuki supplied Sayuri with Kimiko's demo songs, Strip 811.

She was far from supportive of Kimiko when news of the Anna Miller's disaster struck, apparently siding with Matsui enough for Kimiko to issue her 'find someone else' challenge in Strip 910. Even Sayuri feels her too harsh with her client. Technically, she works for Kimiko, not the other way around.