Torako's delinquent past was a well-kept secret from her classmates, who only knew her as the model student. However, everything took a different turn when Nokotan, a transfer student with antlers, came into her life. There was something peculiar about Nokotan, apart from her antlers - her deer nose could smell out Torako's hidden past! From the school to the zoo, wherever this innocent-looking girl went, chaos ensued. Torako was intrigued and had numerous questions. Was Nokotan a girl, a deer, or something in between?