Eris Boreas Greyrat is a noble girl and distant relative of [Rudeus](https://anilist.co/character/88348/Rudeus-Greyrat). She is a tsundere with a short temper but has potential in the Sword-God style.

~!She is Rudeus' third wife and gives birth to their son [Ars](https://anilist.co/character/273378/Greyrat-Ars) and daughter [Christina](https://anilist.co/character/278862/Greyrat-Christina). She is one of the three goddesses Rudeus worships in his religion. A wooden sword that serves as a relic for the Goddess of War is enshrined in the basement.!~