18if

Haruto finds himself in a dream world with a talking cat and a witch whose games turn violent.

Haruto ends up in the dreams of an ailing high school girl, whom he befriends, and takes her beyond the confines of the park near her home.

Natsuki Kamikawa attempts to commit suicide after being bullied, but instead of dying, she enters the world of her favorite anime, Onmyo Ukiyo Ayakashi-Barai. She is excited at first, but eventually gets sick of doing the same old anime thing.

Haruto and Kanzaki meet a tin man named Yoshitsune who is trying to find a girl named Nene. Just when Haruto and Kanzaki figure out that Nene is a witch, they get sucked into another dimension where Nene spends her days with two boys and a cat.

Haruto struggles because he can't communicate effectively with a witch. When Kanzaki asks Mari for advice about this, he comes across someone who seems to be her real-world counterpart.

Haruto meets Jane Doe, a witch doing whatever she wants in the dream world. Haruto and the others are toyed with as they get caught up in her crazy actions and ideas.