Rurubell is a young girl with pink hair, cyan eyes, and a height of 1.47 meters, weighing 39 kilograms. Her physical measurements are 73-52-75. She lives in an all-female utopian realm.

Energetic and persistently optimistic, Rurubell actively pursues becoming one of the new Mamamega's shrine maidens despite initial rejection due to her youth and perceived inexperience. She demonstrates unwavering enthusiasm and a refusal to concede defeat. Her insistence leads to her unofficial inclusion in the miko team, particularly through the influence of her deeply admired mentor figure, Stashia.

In combat, Rurubell employs magical tools and a wand as primary weapons. Her signature armament is a bubble gun possessing surprising offensive utility despite its whimsical appearance. She also demonstrates summoning magic, notably conjuring a serpentine entity to neutralize a formidable golem during a confrontation.

Throughout the purification ceremony crisis involving the stolen Astro Star, Rurubell disobeys protective instructions to remain with the Mamamega. She independently ventures into hostile territory to support her fellow maidens during their rescue mission for Lilith. Her intervention during the climactic battle against Yamimama's forces contributes to restoring the Astro Star and preserving their world.

Her relationships are characterized by loyalty and admiration, particularly toward Stashia, whose guidance she values. Interactions with Lilith involve persistent advocacy for her capabilities. Her initial encounter with Juliana involves a misguided test of strength resulting in swift defeat.