Lesson XX is an original video animation that was released in Japan in the year 1995. The story was adapted from a short story written in a magazine by the author Oonagi Ei Oonagi. It was one of the first few animated movies that featured the Boy's Love genre, or Yaoi.
It is approximately 50 minutes long and focuses on Shizuka Morifuji, a graduating third year student and his boarding school mate Sakura Ichitarou. The story revolves around these two boys, Shizuka and Sakura, who are friends at a coed boarding school. One day, Shizuka happens to notice Sakura’s sheer beauty when he dives to take a hit from a baseball. After some mixed up thoughts of who Sakura likes, Shizuka tells him he wishes to kiss him as a joke. But Sakura doesn’t care; he still insists that the two kiss under the starry sky. After this incident, Shizuka thinks it’s best for the two to be away from each other, so as to sort out their thoughts and real feelings.
A classic example of the shounen ai/yaoi genre, incorporating love, misunderstanding, violence, mild angst, but with a sweet end to it.