Babelonica Trail

is a Japanese light novel series written by Choshiro Kaiba, with illustrations by Fuyu no Haruaki. The series began publication on September 10, 2014 by ASCII Media Works under their Dengeki Bunko publishing imprint.

Synopsis
Research city, Nishikasuga city. While belonging to a school that repeats underground experiments, Hoshiba Petiole enjoyed high school life.

However, the situation changes completely with the return of his childhood friend Yaegaki Sakura. A white dress, a straw hat, and a neat white porcelain look. Although she looks like a picture, it is a headache for the petiole who knows its essence. To be at the mercy of a free-spirited Sakura.

However, Sakura's words and actions that seemed to be carefree had a purpose. It is related to an accident that the school has hidden.