The protagonist Masaru has just inherited a large amount of property after his father's death. However, people are trying to obtain it through any necessary means, even if it means killing him. Narumi helped Masaru avoid being kidnapped after struggling with strange characters. He discovered that they were not humans, but wooden puppets with astonishing power. After a difficult struggle, Narumi was forced to admit that he was not their opponent; Just as he began to believe that Masaru would be captured, Masaru's defender Shirogane came here from France with a weapon - the puppet Arlequin. The story of the Karakuri Circus begins here.
“听说游戏玩家兄妹要征服幻想世界”空与白既是尼特族又是家里蹲，但是在网路上却是被奉为都市传说的天才游戏玩家兄妹。称世界为「烂游戏」的两人，某一天被自称是“神"的少年召唤至异世界，那是个战争为神所禁止，“游戏决定一切"的世界──没错，甚至连国界也一样。 被其他种族逼至绝境，只剩下最后都市的『人类种』，空与白这两个废人兄妹能够成为异世界的『人类救世主』吗？“──来吧，游戏开始了。”
因设计包括《超时空要塞》系列在内的知名机甲而闻名的河森正治，以及《恶魔人》中的恶魔设计师押山清高都为机甲的设计贡献了自己的天赋。冰雪覆盖的 Coldfoot 星球是富含能源的珍贵矿石的家园，这种矿石名为“sig”。表面上看，这个星球似乎是一个没有犯罪事件的乌托邦，但实际上囚犯都被用来进行累死累活的 sig 采矿。吉姆是一名年轻的狱警，他赶往一场突然的采矿事故现场，发现一个神秘的生物正在攻击人类。 演职人员： 吉姆：山桥正臣/马尼：高垣彩阳/沃尔特：山路和弘/伯克船长：大塚明夫 演职人员： 故事改编：太田垣康男/导演：本田诚人/编剧：由美子吉泽章/机甲设计：押山清高、河森正治/音乐：牛尾宪辅/角色设计：Studio 5/动画制作：Studio 5
