Junna Hoshimi is a diligent and analytical second-year student in the Actor Training Department at Seisho Music Academy, part of the 99th graduating class with student number 25. Born on October 1st, she serves as class representative. Possessing strong decision-making skills yet prone to overthinking, she chose acting against her parents' wishes, fueling persistent worries about the talent gap with peers like Maya Tendo. Her interests include reading and baths, while she dislikes ball sports, swimming, and scary stories. She favors meat and potatoes and shiitake mushrooms but avoids celery. Her background reveals a deep fear of inadequacy and conformity, symbolized by imagery of identical mannequins reflecting her early sense of lacking individuality. This motif extends to her revue stage, featuring ruined arches with glass-like pediments refracting light, mirroring her reliance on observation and strategic distancing. Her weapon, a bow and arrow, suits her methodical approach, emphasizing long-range tactics and information gathering. She arrives early and stays late for rehearsals, driven by the belief hard work can overcome innate talent. Viewing the giraffe's auditions as meritocratic opportunities, Junna's competitive drive surfaces when confronting Karen Aijo, criticizing assumptions about predetermined lead roles—a moment reinforcing her resolve to seize her own star. During their duel, she employs mannequin distractions, highlighting her insecurity about being indistinguishable. Though defeated, she acknowledges Karen's ideals of shared stardom while strengthening her personal determination. Sharing a dorm room with Nana Daiba, their dynamic includes collaboration, like Junna playing Christine to Nana's Phantom in an adapted *Phantom of the Opera* script within the *Re LIVE* game. In the *Valentine's Recipe for Happiness* event, Junna forms a "chocolate alliance" with Hikari Kagura; Junna crafts her gift for Nana. This collaboration helps Junna understand Hikari offstage, leading Junna to offer first-name address, which Hikari politely declines. Stage plays depict a more intensely rivalrous Junna initially, treating revues as hostile competitions rather than friendly rivalries. This version gradually evolves toward mutual respect, especially after shared stage experiences. In the recap film *Rondo Rondo Rondo* from Nana's perspective, Junna participates in the revues, adhering to the giraffe's rules without exclusive new development. Her narrative ties into franchise themes like stellar motifs representing ambition and the number nine symbolizing the 99th class's collective aspiration. Junna's development culminates in balancing self-acceptance with ambition. She transitions from rigid self-reliance to valuing collaborative growth, supporting peers and participating in group efforts—even risking punishment to help Karen and Hikari avoid disciplinary action. This evolution reflects her integration of hard work with growing confidence in her unique artistic identity.