Witch cameos, next to Yumi: Hazuki and Aiko (Ojamajo Doremi), Elphaba (Wicked), Hermione and Luna (Harry Potter), Doremi, Yuuko (xxxHOLiC), Ai (Love Witch).

Ai: Why did these people have a hard time finding witches at this school?

Yuuko: This is just the April Fool’s Day strip, that’s why.