Tied To You

This is the same magical Boiling Isles you know, but... Everybody has a red glowing string around their ring finger. Once a person and their soulmate share their first kiss, a red string connects you and the other person together.
This red string means they are soulmates and are meant for eachother.

If you do not have a red ring around your finger that means your soulmate has either cut the string or dies. The worst possible case of not having a ring is that you didn't match with anybody at all, meaning that you belonged with nobody.

Amity Blight never had a ring around her finger. both her siblings Edric and Emira had rings. But not her.
People would whisper about how the Blights have a daughter without a ring.
Amity lived 17 year's of her life thinking she belonged with nobody. Until one strange morning the young Blight woke up to a red ring around her finger.

Luz lived in the human world with no friends, and no soulmate. But what happens when she finds a portal to a new world and her ring finally appears.
She started getting mentored in magic by Eda. Who had sighed her up for her up for her first day at Hexside.
Who know's? Maybe her soulmate will be going to Hexside with her.