Earth Sphere Chronicle: Dai Kenja Sofia

is the third volume of the Earth Sphere Chronicle light novel series, written by Shota Asuka and Illustrated by Aya Kadoi. It was released under the Dengeki Bunko Imprint in November 2001.

Synopsis
Alice and her companions, who are the world's inquirers, will be hidden in Sophia's hometown, Claire Garden. This time she was Alice, who decided to live as a legitimate high school girl, but ... it crumbled on the first page. Meanwhile, the seal that controls the magic of the world was broken by accident, and Claire Garden was in a big panic. The secret of the magical girl Sophia is revealed, Will becomes a little adult, Ark continues to swell, and Alice's chest continues to swell and is on the verge of bursting! Where is the crisis in the world? 3 bullets.

(source: Amazon JP - Translated)