Magikano

Plot
Ayumi Mamiya is a witch cursed to lose her powers but there is one boy who can break the spell and save her. Haruo Yoshikawa thinks he is a normal boy but unknown to him his three sisters are witches who use their magical powers to keep him protected and ignorant about the existence of magic. Now Ayumi must wake up Haruo's latent powers to save herself but his sisters will have none of that.