The Eidolon of Maya, the appearance is identical to Maya, except Ymir has bigger ears and eyes more like a cat. They can also be wearing different sets of clothing.

Ymir has self respect and does not accept jobs that Maya would not accept herself. Though they are a little dumber, but more wise than Maya. They don't need to eat or drink, but do need to sleep.

Ymir is made from the part of Maya that strives to protect those under her charge, the protective noblesse oblige.