十一年一次的祭典即将在正十字学园町召开，奉命随同奥村雪男（福山润 配音）处理幽灵列车事件，却因奥村燐（冈本信彦 配音）和诗绘美（花泽香菜 配音）自作主张，导致事态朝着最混乱的方向发展。暴走的列车不仅损坏大量建筑和设施，还压垮了一个年代久远的神社。遭受禁足惩罚的燐被命令监管原本封印在神社中的少年恶魔，可是在他眼里，那只不过是一个调皮捣蛋却又惹人喜爱的可爱小男孩。燐渐渐放松了警惕，他的友善也得到男孩的热情呼应。与此同时，为防止恶魔入侵，包括台湾支部刘成龙（木内秀信 配音）在内的世界各地顶尖除魔师纷纷云集正十字学园，严阵以待。而在此期间，诡异的事件接连发生……本片为漫画家加藤和惠同名原作改编的TV动画剧场版。
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