Shushu's world is upended by a revelation from her father: despite her belief that she was a wereman, she is actually a werewoman, ineligible for the prestigious role she aspired to. To fulfill her father's retirement dream, she enrolls in Monster Academy to qualify as a wereman. Here, she crosses paths with Juzu, the humble son of the school's monster king. Despite his intimidating reputation, Juzu proves to be a simple-minded but kind individual who craves companionship. As their friendship blossoms, Shushu's hope for a quiet existence vanishes under the scrutiny of their peers, sparking unexpected challenges and growth.