Tata no Mahoutsukai

is a Japanese light novel series written by Uper, with illustrations by Shoji Sato. The series began publication on February 8, 2018 by ASCII Media Works under their Dengeki Bunko publishing imprint.

Synopsis
July 22, 2015 12:20. Tata, a mysterious woman who claims to be a witch from another world, suddenly appears in the classroom of Group A in the first year of Hirohashi High School. It was the beginning of the disappearance of a public high school, which was later called the "Pied Piper of Hameln" in analogy to a fairy tale.

"I decided to fulfill the wishes of everyone in this school."

Tata's declaration made all the "future dreams" of all the students and faculty members written in the junior high school graduation collection come true. And a world where every dream comes true appears. However, it was a foreign land due to the fulfillment of a student's desire to "travel in a different world."

Their weapon in a world isolated from reality is a dream of the past. In order to return to Japan, the curtain of a harsh different world survival by all the students will rise.