Parasyte -the maxim- (2014)

S1E3 Feast

With the mincemeat murder victims on the rise, Shinichi grapples with the weight of his knowledge alone. His anxiety intensifies when Migi informs him of another parasyte lurking nearby, and he is shocked to discover it’s at his own school. Filled with paranoia, Shinichi goes to a school assembly, where the faculty unveils a striking new teacher, adding to his unease.