Kaguya-hime features distinctive rabbit ears tied to East Asian moon rabbit folklore. She warns that touching her ears invokes a lunar curse and asserts celestial authority through phrases like "On behalf of the Moon, I shall exterminate you." Her origins derive from *The Tale of the Bamboo Cutter*, a Heian-period story where the moon-dwelling Princess Kaguya emerges from a glowing bamboo stalk and later returns to her lunar home, cementing her otherworldly essence. Her personality merges playful mischief with deceptive tendencies; she relishes pranks and lying despite her outwardly cute appearance. She maintains an ongoing rivalry with Ichihime centered on battles for control of the Mahjong Soul Shrine, expressed through constant competition. Thematically aligned with the moon, she references lunar punishment and echoes her legendary namesake’s celestial departure. In-game progression requires bond-building resources: diamonds, Spheres of Wisdom, Spheres of Light, Heart of the Ocean, Wishing Stones, and Star Dust. Visually, she showcases multiple outfits: a default design, "Full Bond" attire, Christmas wear, an animated Spring Celebration costume, and "Dripping Glamour" ensemble. Merchandise depicts her in a "Contract Ver." pose with a seductive outfit. She appears in the *Mahjong Soul Pon☆* and *Mahjong Soul Kan!!* anime series. Her self-assured, demanding demeanor surfaces in quotes such as "Yo, human! What did you prepare for me today? Bring it to the goddess now!"