Rina belongs to a sisterhood capable of self-cloning, generating autonomous yet synchronized duplicates with unique identities. Each clone bears subtle personality shifts and designated roles: Rinacchi (authoritative strategist), Rinaji (contemplative advisor), Rinayo (mischievous prankster), Rinako (whose fatal curiosity led to consuming forbidden food in the opening episode), Rinazo (perished prior to the series amid clashes over scavenged possessions), and Rinamu (slumbering until her leaf matured in the finale). Rinana, another clone from an ONA prelude, met an early demise.

Rina dons a twin-tailed maid outfit adorned with skirt-hemmed black spheres that autonomously detach, sprout spindly legs, and scuttle independently before regenerating. The clones ingest and replicate materials, relying on metal or Kemurikusa-infused matter for energy—a trait inherited from their progenitor, Riri, the First Person of Taste, who fragmented herself to rescue Wakaba.

Though collectively cheerful and prone to playfully pestering Wakaba, individual quirks surface: Rinamu’s late awakening contrasts Rinako and Rinazo’s mortality, underscoring their fragility. In combat, they weave agile tactics, hyperspace-conjured weapons, and synchronized maneuvers against Red Bugs and Nushi. Their dialogue peppers sentences with a signature “na” suffix.

Originating as splintered facets of Riri’s consciousness, the clones embody her yearning for tranquility. While their stories lack overt individual arcs, their interconnected existence reinforces themes of symbiotic resilience and collective identity.