Beachi is Rizumu Amamiya's mascot companion in the Pretty Rhythm series, appearing as a bear character with a bow tie and rosy cheeks. As Rizumu's mentor mascot, Beachi guides and supports her journey as a Prism Star. This includes aiding Rizumu's pursuit of the legendary Aurora Rising jump and her efforts to uncover the mystery behind her mother's disappearance. Beachi remains a consistent presence in Rizumu's life, continuing its supportive role unchanged after her marriage to Hibiki in Dear My Future.