Nanako runs the classroom as the heir to the head of the flower arrangement school. There were various kinds of students who went there. She is both her teacher and a woman of age, and one day her student Asada witnesses her masturbating in her classroom. Asada and Nanako are more than a year apart in age, even though they are students in the flower arrangement class. Nanako had no choice but to become a female in front of Asada who is also a bondage master who knows women well. She is a world of pleasure that she did not know. And she has a sense of immorality that she has never felt. Nanako falls as if she is swallowed by a big current. What path did she choose in the end?
