Profile - Mary Demore and Meridiana (ichimatsu v1)

Escaping uncertain turmoil, Mary Demore moves to a new school where she is overjoyed to meet her childhood friend Ainsley Wintertide, as well as and her friends.

However, her past catches up to her. They learn that Mary is a succubus who, due to a traumatic incident, has been suppressing her urge to attack humans. In her worst moments, she becomes a different person and feeds with reckless abandon.

Her friends embark on a journey to help her, and in the end they learn about and make peace with Meridiana, the personality she suppressed for so long who really only wanted the best for Mary.