OVA
Description
Rom stands alongside her twin sister Ram as a CPU Candidate representing Lowee. She embodies the Nintendo DS hardware, her name originating from "Read Only Memory". In her human form, she possesses shoulder-length brown hair, grey-blue eyes, and stands 132 cm (4'4") tall. Her signature attire features a pastel blue overcoat decorated with white puffballs, a pink handbag, and matching accessories, including a hat bearing a pink rectangle symbol – a direct nod to the DS logo's screen icons. When transformed into her White Sister state, her hair shifts to light blue with one long strand over her right shoulder, her eyes become pink, and she dons a white bodysuit accented with pink on the limbs and torso, growing to 137 cm (4'6").

Shy and quiet by nature, Rom often appears nervous or upset by Ram's more boisterous actions. She rarely acts alone, typically following Ram's lead, though she occasionally asserts her own will. Transforming into White Sister grants her increased confidence and seriousness while maintaining her soft-spoken demeanor. She favors coloring, drawing, candy, sweets, the color blue, party games, and 5pb's music. Her dislikes include Ram's mischief, Blanc's rage, scary situations, and threats to her loved ones.

Her story involves recurring trials. In *Hyperdimension Neptunia mk2/Re;Birth2*, she is kidnapped with Ram by Linda, requiring rescue by Nepgear's group. After being saved, she briefly fights Nepgear under a misunderstanding regarding Blanc's disappearance before warming to her. Rom develops a strong fondness for Nepgear, expressing a desire to "give her strength." Within *Hyperdimension Neptunia: The Animation*, she and Ram visit an amusement park without Blanc's permission, leading to their kidnapping. Blanc ultimately rescues them, prompting reconciliation where Rom gifts Blanc a drawing. The twins also assist Vert with concert preparations and engage in doodling.

In combat, Rom wields staffs and specializes in ice-elemental magic with support capabilities. Her attacks include **Ice Coffin** (giant ice spikes), **Eternal Force Blizzard** (encasing enemies in shattering ice), and **Northern Cross** (energy orb beams). Her HDD form, powered by "Dee-Ess Light Processor Units," amplifies these abilities. She functions as a white mage archetype, focusing on healing and stat buffs rather than direct combat. Rom and Ram execute combination attacks like **Endless Cocytus** (icy tornado and spikes) and participate in special moves with Blanc.

Her background identifies her as Blanc's younger sister, though contradictory information exists regarding her birth order with Ram. English adaptations position Rom as older despite her shyness, while Japanese sources sometimes imply Ram is older, potentially reflecting cultural interpretations of twin hierarchy. She shares an inseparable bond with Ram; both fear separation from each other and Blanc. Rom specifically worries about Ram becoming independent and "not needing her anymore." Additional traits include an aversion to hot baths and typical childhood fears amplified by her youthful appearance.

Rom appears in spin-offs like *Hyperdimension Neptunia: Producing Perfection* as a backup dancer and *Hyperdimension Neptunia U: Action Unleashed* as a playable character. Her relationships emphasize loyalty to her sisters, admiration for Nepgear, and camaraderie with fellow Candidates like Uni and Nepgear.