Bear-chi functions as both cheer mascot and dedicated coach for Rizumu Amamiya, guiding her growth as a Prism Star. The name fuses “bear” with “cheer,” encapsulating the character’s supportive role. Physically, Bear-chi resembles a brown bear with vibrant yellow eyes, pale blue fur framing the eyes and feet, a white muzzle and stomach, and a golden-yellow bowtie adorned with a crystal heart at its center.

Initially, Bear-chi’s coaching strategies seem playful—assigning activities like coloring books—but these exercises strategically target Rizumu’s weaknesses in color coordination and compositional awareness, essential for excelling in Prism Shows. While calmer in demeanor than mascots like Rabichi, Bear-chi mirrors Rizumu’s tenacity and vigilantly safeguards her well-being, particularly when she strains to achieve daunting goals such as mastering the Aurora Rising jump.

Their dynamic transcends mentorship, shaped by Bear-chi’s protective instinct toward Rizumu’s self-critical drive. Collaborating with fellow mascots Rabichi and Nekochi, Bear-chi helps cultivate a united support system for their partners. Though the character’s contributions remain rooted in training and emotional guidance within the original series, no expanded narrative or appearances in subsequent media are documented.