Sasami: Mahou Shoujo Club 2

Sasami and the other girls are invited to the world of witches for summer training, where their natural magic is celebrated instead of concealed. The welcoming environment fascinates them, but Washu senses that the adults guiding the camp have plans extending far beyond simple lessons.

After the group returns home, Misao feels increasingly ignored and leaves the club when the magical world offers her the belonging she craves. Sasami and her friends follow to bring her back, only to face a stronger Misao who believes their friendship has already abandoned her.