阳光明媚的樱花新镇上空，突然出现了一条硕大无比的鲸鱼。它张开大嘴，发出震耳欲聋的鸣叫。更加诡异的是，当鸣叫声过后，天野景太（户松遥 配音）和妖怪管家维斯帕（关智一 配音）发现自己竟然从二次元变成了三次元的模样。一拉就会疼的头发、手臂上细密的纹路、清晰可见的汗毛孔，前所未有的体验让景太惊诧不已。更有甚者，连维斯帕、地缚猫（小樱悦子 配音）也变成了三次元的状态。之后的时间，他们频繁穿梭于二次元和三次元两个世界，追查着这场大混乱的原因和幕后黑手……本片根据同名手游改编。
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