The movie tells the story of the time a teacher of the subject Yui Hatano has fun moments with her students and colleagues at a not very well-known high school in the countryside of Shirakawa, Japan.
First, Hatano actively makes friends with a special male student in the class, she calls her student to her private room and starts exchanging academic matters. Of course, after a short time, both of them start to switch to a different "story", a story that is more attractive and captivating than academic matters.
Not stopping there, Yui Hatano continues to "socialize" with a colleague who teaches physical education in... a private room, where only the two of them can "talk" to each other without being "overheard" (meaning being disturbed).
And finally, she switches to playing some, using "two guns" alone, not sure if Hanato can handle it or not :)).
