Ririna began as one of 400 nameless goblins seeking refuge in Rimuru Tempest's Goblin Village during his absence in Dwargon. She later moved to the developing capital, Rimuru City, within the Jura-Tempest Federation. Rimuru Tempest named her, evolving her from a basic goblin into a Goblin Lord and cementing her extreme loyalty, common to all named citizens.

Physically slender with purple hair and eyes, she stands taller than Shuna, estimated between 165–170 cm. She typically wears a wine-colored dress with a white waist belt, long blackish sleeves, and brown boots.

Rimuru appointed her supervisor of Tempest's production affairs, formally holding the position of Minister of Agriculture. She manages the nation's agricultural output and resource management, including overseeing harvests like directing Gobta and his team during sweet potato collection. She approaches these duties with consistent seriousness and diligence, both before and after her naming.

Professionally dedicated, her official demeanor can shift during moments of frustration, particularly involving Gobta, revealing a less polished speech pattern described as her original dialect. Information regarding her activities or development beyond the events depicted in "The Slime Diaries" spin-off series is not available.