A Witch's Love at the End of the World, Vol. 1 by Kujira

In a world where magic rules from the shadows, there exists a school forwitches. This mysterious academy trains young witches on a path of revengeagainst those who have used them only as tools. Alice, a magical prodigy, haslived her life by this goal only to have her world turned upside down when Mari,a magic-less human, enters the school and her heart!