Slíðr

Gunnthrá is the eldest princess of Nifl, and thus the elder sister of [Fjorm](https://anilist.co/character/126621/Fjorm), [Ylgr](https://anilist.co/character/129686/Ylgr), and Hríd. She calls to the [Summoner](https://anilist.co/character/124407/Eclat) via telepathy to assist him/her.