Title: 空ろの箱と零のマリア3
Description: Kazuki and Maria have been trapped once more, and this time, it's someone they never would have thought was a User. When the trial they face turns out to be a role playing game, it'll be the greatest test of their ability to keep a secret and stay alive until the end!
Subjects: series:空ろの箱と零のマリア, form:light novel, genre:action, genre:mystery, genre:romance, genre:thriller