Tsukiyohime is a kunoichi-in-training visually distinct within her class due to her traditional attire and elf-like ears. She maintains a consistently mysterious and cryptic demeanor, materializing only at pivotal moments to offer guidance. Her interactions uniquely involve consuming miso soup; she employs it as a medium to manifest visions of concurrent events or potential futures, presenting these glimpses to other characters.

Her guidance avoids direct solutions. Instead, she offers ambiguous advice or these visions, compelling her classmates to interpret the meaning and determine their own course of action. This defines her role as a cryptic advisor who facilitates problem-solving without providing explicit answers. Despite demonstrating evident competence and perceptive abilities through these interventions, her frequent absence from regular class activities results in her having the lowest academic grades among her peers.

A significant demonstration of her methods occurs during a crisis where a monster freezes a forest. She initially appears to betray her allies by siding with the threat. This act, however, is later revealed as a calculated strategy to position herself advantageously, indirectly aiding her friends towards victory and aligning with her indirect assistance approach. Her interventions occur unpredictably and in improbable locations, solidifying her role as an episodic catalyst who propels the main characters toward resolving challenges through enigmatic insights.