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.
与使自己立志成为角色设计师的契机——八神光相遇，由此开始，在可靠的前辈们帮助下，一点一点成长的青叶。 之后《妖精物语3》也顺利完成，从青叶入社开始刚好过了1年，又到了“Eagle Jump”迎来新员工的季节。 曾经是个一窍不通的菜鸟的自己也终于要成为前辈，一想到这里就无法抑制心中激动的青叶。 “我是前辈凉风青叶哦！请多指教！”青叶在“Eagle Jump”的入口重复地练习打招呼……。 描绘在游戏公司工作的女孩子们日常的工作少女喜剧再度开幕！
他还说，威廉是所罗门的后裔，是恶魔王国的“被选中的人”，有权选择代理国王。作为一个相信科学的现实主义者，威廉认为丹塔里翁所说的一切都是胡说八道，于是将他赶出了家。再次回到学校，威廉意外地发现，他已经付清了所欠的所有学费。不仅如此，班上突然出现了一个新学生，他就是丹塔里翁。丹塔里翁不仅帮助威廉支付学费，还一直陪伴在他身边保护他。与此同时，威廉遇到了一个名叫西迪的神秘学生（松冈贞蒂配音），他自称是魔界子爵，同时也是代理国王的替补。。。恶魔王国与人类世界、恶魔与现实主义者的故事在这里展开。
