It consists of two parts, the first half is a story where the town becomes a huge feeding ground, and the second half is a school attack. Predators include leeches and amoebas. In the second half, the bus is attacked and the victim is swallowed inside. And they are excreted through the window. We also included the excretion of leeches on the ceiling and walls. This is the second special feature on leeches, and the stage is U.S. ・ Monochrome 38 pages.