Anri, who struggles with physical education, is forced to stay after class for extra training. However, what awaits her is a shocking assault by a perverted teacher. Still dressed in her gym uniform and school swimsuit, she is helplessly violated in an empty classroom. Urine drips uncontrollably from her body as her mind and spirit are completely broken. Subjected to unimaginable acts by the teacher, she gradually loses all sense of self. Amid overwhelming humiliation and pleasure, Anri is taken beyond the point of return.