Based on available materials, Ruran serves as an antagonist within the narrative. She appears in Episode 2 of the OVA, launching an attack against the protagonists Sae and Shouko. This assault involves a group of male students described as being in a state of heightened arousal. Context identifies Ruran as one of the "evil magicians" originating from the parallel dimension of Eetel Land. These magicians cross into Earth's dimension to harvest human consciousness as a power source, prompting the deployment of magical girls like Sae to oppose them. Her documented involvement is confined to these events in Episode 2.