[DeepL Translation - needs review] Volume 1: [The e-book includes a newly written SS as a bonus] After a certain incident, Sumihara Tsugito, a high school student, ended his life with hatred and regret. He woke up in a strange cave, where he was supposed to have died. Looking around, he found a world where huge mountains soared up like stabbing spikes through the sky, and it was hard to believe that modern civilization had ever penetrated there. In a world that is clearly not Earth, Tsugito ...
