Angry Mask Appears!!

A series of kidnappings of elementary school students occur. Mr. Ochiai lectures his students on the despicable crime of kidnapping and the mental attitude children need to protect themselves. However, Hiroshi thought that this incident should be resolved by the Hadogumi, so he called the members together after school. The members agreed with Hiroshi on the condition that he would not do anything dangerous. The activities of the Hadogumi begin.