Ghost and Witch Vol. 1 by Kore Yamazaki

Haunted by a monstrous presence that clings to her soul, a girl named Saku flees Japan and journeys across the sea to Ireland. There, she encounters a silver-haired witch who may offer her refuge. But the witch's salvation comes at a price - and as Saku begins to face the power she's long feared, her path shifts from escape. to transformation. This is the tale of a girl in flight...and the beginning of her journey to become a god.
Binding: Paperback / softback