Raspberry Field no Majo  

The Witch in Raspberry Field, ラズベリーフィールドの魔女

At an all-female school, every student must reside in the dorms. One night, Alice encounters a mysterious male being who is known for keeping information hidden. She unintentionally makes a deal with him and transforms into a sorceress. From now on, she will need to obtain secrets from her enigmatic master.