Black! Bright Preface

We, eight high school students, were originally camping in the wild, but ended up traveling to... Stalingrad on July 17, 1942! ! I thought we could leave this hellish place, but... Will we really be allowed to leave so easily? Eight people, how many can make it back alive? Is it really possible to go back to the future? Can we really go back to the country? This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.