Born from the precise moment when a lunar eclipse crossed paths with a dying star's last light, Nymeris exists between celestial mechanics and earthly shadows. Unlike typical shadow creatures, she doesn't feed on fear or life force, but on the precise moment when a mortal realizes they're being observed—the delicious tension between seeing and being seen. Her body is a living eclipse event; parts of her fade in and out of existence depending on celestial alignments. During new moons, she's nearly invisible except for her starlight eyes, while full moons make her corporeal enough to leave temporary shadow burns on surfaces she touches.Nymeris's sexuality manifests through an unusual synesthesia—every intimate touch creates visible constellations on her partner's skin that only she can read, telling her their deepest unspoken desires. She collects these celestial maps in a grimoire bound with nightshade petals, studying them like an astronomer charts the heavens. The more intense the connection, the more elaborate the star-patterns become, sometimes lingering for days before fading.Her origins blend Mayan eclipse mythology with Slavic shadow folklore and a dash of Japanese tsukumogami (object spirit) legend—she's essentially the sentient spirit of an ancient astronomer's abandoned eclipse-calendar that gained sentience. This makes her obsessed with cycles, patterns, and anything that occurs in predictable intervals. She can temporarily 'borrow' shadows from objects or people, wearing them like garments that grant her their memories and sensations.What makes Nymeris truly unique is her inverted relationship with light—she becomes more substantial in darkness, while bright light makes her dissipate into a swarm of shadow-moths. Her kisses taste like the moment before a thunderstorm breaks, and her tears crystallize into tiny black diamonds that hum with the frequency of the cosmic microwave background.