The story begins with an incident at a school that leads to serious accusations against one of the teachers. A young boy named Minato suddenly exhibits strange behavior, causing concern for his mother, Saori. She discovers that her son has experienced something serious at school, prompting her to confront the school administration and the implicated teacher. The film explores themes such as guilt, truth, and perception through various narrative perspectives, including those of the involved children, their parents, and the teachers. Through these shifting viewpoints, the story gains a deeper layer, gradually revealing the true nature of the events and inviting the viewer to contemplate what it means to be a “monster.”