Uni embodies Lastation's CPU Candidate, representing PlayStation handheld consoles through visual design, processor units, and dialogue. Her name derives from the PSP's Universal Media Disc format. As the younger sister of Lastation's Console Patron Unit Noire, she fulfills a secondary deuteragonist role franchise-wide. Her disciplined, serious demeanor contrasts with underlying insecurities about her capabilities compared to Noire, fueling narrative tension around her desire for validation. This dedication drives rigorous training and responsibility-taking, though she occasionally masks concern with tsundere harshness. Relationships with fellow CPU Candidates, especially Nepgear, evolve through cooperative missions fostering mutual trust. Physically, Uni features purple hair styled in twintails secured by black ribbons, mirroring her processor unit's color scheme. A distinctive trait sees her bust size decrease upon transforming into Hyperdevotion Unipose form, reflecting PSP hardware miniaturization progression. She wields a sniper rifle in combat. Associated musical themes include "Uni's Theme" from Hyperdimension Neptunia mk2 and the duet "Sham Cold Girls" with Noire, later remixed officially. Her story arcs explore growth across dimensions: - In *Megami Tsuushin*, she intervenes against ASIC's R4 Show while navigating sibling conflicts with Noire. Their reconciliation involves collaborative gift deliveries for Blanc's sisters and idol performances. Temporary de-aging occurs during Volume 3, including chocolate-making for senior CPUs. - *Hyperdimension Neptunia mk2* features a pivotal confrontation path where Uni and Noire become adversaries under specific conditions. - Spin-offs diversify her roles: zombie apocalypse survivor in *MegaTagmension Blanc + Neptune VS Zombies*, Thief-class beta tester in *Cyberdimension Neptunia: 4 Goddesses Online*, and game company president in *Neptunia Game Maker R:Evolution*. Non-canon appearances include Chaos Energy corruption in *NepNep☆Connect* and dimensional travel assistance in *Dimension Tripper Neptune: TOP NEP*. Trivia notes her developing connections with male robotic characters like CFW Brave and Steamax, contrasting Nepgear's mechanical interests. She exclusively possesses a fourth-wall breaking attack within the franchise. Uni consistently ranked high in popularity polls, placing fifth overall during 2011. A linguistic particularity sees her omit "-chan" honorifics when addressing peers in Japanese dialogue. Cross-media expansions include limited-time events in non-Neptunia games like *Million Arthur* and *Houkai Gakuen 2*. Merchandise spans scale figures, anniversary plush designs, clear files, and tapestry artwork depicting multiple costume variants.