Xenotime serves as an antagonist within the Dead Moon Circus, appearing in the Dream arc of the manga and its animated adaptations. His humanoid form features pale skin, long blonde hair tied into a pink waist-length ponytail, and a forehead dot characteristic of Circus members. His exposed collarbones, noseless face, and elongated nails contrast with a stark white-and-black checkerboard bodysuit that conceals his body, leaving only his head and hands visible. He collaborates closely with his twin, Zeolite, whose near-identical appearance diverges only in gray-and-white checkerboard attire. Both twins wield knife-throwing skills and conjure Lemures—nightmare entities—to ensnare targets. Their missions involve orchestrating traps to subdue opponents or transform them into Circus affiliates. In one scheme, Xenotime disguises himself to lure Minako Aino into a rigged idol competition, distributing cursed business cards that incite chaos as contestants turn violent under Lemures’ control. During the event’s tower challenge, Xenotime immobilizes Minako with thrown knives, attempting her forced conversion. The plan unravels when Artemis intervenes, temporarily humanized to deliver Minako’s Venus Crystal. Empowered as Super Sailor Venus, she obliterates Xenotime and Zeolite with her Venus Love and Beauty Shock attack. Media adaptations diverge in execution: the manga depicts Xenotime taunting Minako mid-climb, hurling knives and mocking her agility, while the anime simplifies her ascent to a ladder, removing direct peril. The manga prolongs tension by interweaving their threat with other subplots, whereas the anime streamlines these sequences. Xenotime’s origins remain tied solely to his loyalty to Queen Nehelenia and the Circus. His name derives from the mineral xenotime, aligning with the series’ geological nomenclature for antagonists. Excluded from the 1990s anime, he appears exclusively in the manga and later Crystal/Eternal adaptations, with no spin-off appearances or expanded backstory documented.