Seimaden Vol 1

Seimaden by You Higuri. A Fantasy manga rated Teen, published in English by CMX.

Hilda is a down-to-earth dancer admired all over town, and she has a mysterious protector: Laures, a boy in black from the underworld. The two were bound together in a past life that Hilda can't remember, and Laures's minions keep trying to drag him back to his kingdom. A gothic romance in a medieval setting from You Higuri.