Aurora Corona (a Touhou LW original) refers to an aurora shaped like a crown. Perhaps because of her non-Eastern origins (or maybe just because of her transcendental way of thinking), Flandre's temperament deviates from the usual laws of Phases and Essences. She is weak against Sun Essence with its governance of day, Water Phase with its barrier properties against vampires, and Wood Phase with its legendary use in defeating vampires. She is strong against Moon Essence and Star Essence with their governance of night, as well as Metal Phase with its position as a symbol of universality.

The ability of Flandre Scarlet from the world overrun with animal spirits (a Touhou LW original). There is no noticeable difference between her ability and the abilities of Flandres from other worlds. The 17th prolonged incident, where animal spirits appeared Gensokyo, was initially caused by a conflict in the Animal Realm. Gensokyo's denizens played no real part in the incident except for Reimu and her fellow incident resolvers. Perhaps the incident was prolonged because they struggled to complete their mission, but that might not be the only reason. The animal spirits came to Gensokyo to guide human incident resolvers to the Animal Realm. In the Animal Realm, the animal spirits were engaged in a drawn-out battle against a god summoned by human spirits in the Primate Spirit Garden. Their ambitious plan was to get the humans to eliminate this god, thus removing the main obstacle preventing their invasion of Gensokyo. The animal spirits were always at the forefront of this invasion. The Kiketsu Family, the Keiga Family, and the Gouyoku Alliance are the three most well-known animal spirit clans in the Animal Realm. They sent a bevy of otter spirits, a pack of wolf spirits, and a flight of eagle spirits to Gensokyo. However, many more clans and types of animal spirits make up their sophisticated civilization in the Animal Realm. They claim that their society is ruled through violence and chaos, but in reality, a complex hierarchy exists, just like in Gensokyo. The small, weak, and nameless animal spirits are always looking for opportunities to get ahead. Presumably, the Animal Realm is the place where all the souls of deceased animals await reincarnation, so there should be spirits of every type of animal there. The house cat spirits hanging out at the Scarlet Devil Mansion possessed Flandre. However, this probably wasn't by design. They went up to Gensokyo, not because they were particularly interested in the invasion, but simply because that's where all the other animal spirits were going. Similarly, they only chose to hang out at the mansion because they liked it there. Since cats are known as animals that absorb sunlight, they were granted permission to stay. They stayed so long that they not only possessed Flandre―they overly possessed her. It's thought that her fluffy cat ears, tail, and paws materialized because the spirits' temperament became so dense they attained corporal bodies similar to ghosts. Or because they hijacked Flandre's vampiric power to turn magical energy into solid objects. It's probably the former, seeing as Flandre can freely take them off and put them back on again. So many house cat spirits gathered together and possessed Flandre, but they didn't do this for any clearly defined reason. They haven't even tried to control Flandre. Their one wish is that the incident lasts as long as possible because they would have to go back to the Animal Realm once the incident is resolved, and they don't want to leave their new home. They hope that by helping Flandre have fun, she'll become the queen of Gensokyo and turn the entire land into a place as cozy and as pleasant to live in as the mansion's basement. It sounds silly, but this might actually be within Flandre's power. When youkai get possessed by vengeful spirits, their temperament can fundamentally change, turning them into a new type of youkai. However, animal spirit possession isn't quite as powerful as vengeful spirit possession. When animal spirits possess humans, the changes are limited to the host's personality and bullets. That said, these changes would be greater in youkai since youkai are spiritual beings. That's one of the reasons why humans, and not youkai, are usually tasked with resolving incidents. And if multiple animal spirits possessed one youkai... the changes might be so drastic that a new type of youkai is born.