Yoji Minamimaru, known as Nanmaru, is a university student with a supernatural ability to create small holes in anything. One day, Yoji finds out that the professor of folklore studies has gone missing. Together with his classmates, he decides to search for the professor.

大学医院内一名患者死亡后，病理学家藤卷达臣发现了一种名为"Gift"的未知杀人球菌，一旦进入病人体内，很快就会死亡，之后球菌完全消失，死因皆被诊断为急性心力衰竭。贪婪的医生试图利用"Gift"进行权力斗争，有权势的人试图将其变成金钱。转眼间，藤卷也被卷入了这场围绕着"Gift"的阴谋之中…