In 20XX, an evolutionary phenomenon occurred among humans, causing tails to grow on certain individuals, and their existence became widely known in society. Five percent of the population evolved into tailed humans, with scientific evidence confirming this mutation. At one school, a specialized academy for tailed humans was established, gathering students with tails. A documentary crew visits the school, interacting with the students and exploring their daily lives and relationships. Captivated by the natural allure of their evolved bodies, new forms of love and intimacy emerge in this documentary-style production.