18if—Awaking in a witch’s designed dream world, Haruto wanders the dreamscape, sometimes meeting a young girl who aids him in dangerous situations. Then he encounters Katsumi Kanzaki, a professor who studies witches in the real world, who mentions this is the consciousness of girls afflicted with “Sleeping Beauty Syndrome,” who are trapped in their own minds. To discover why reality is physically affected by various witches’ actions, Haruto and Katsumi must work together.
