Nyx Goetia is one of the royal people of the Ars Goetia family. She is a black crow avian with the power of the night. She posses the all knowledge of the night. She holds the Grimoire of The Night. Basically it have all the spells to cast but only work to be done in the night. All the spells in there won't work in the daylight. Nyx is very tall but it's common for avian like her . She is 2 metres and half .  She mostly wear masculine outfit despite being a royal woman who suppose to wear dress.