Otona no Shoumei

Tsubaki appears mature, but at 16, she has no romantic experience and is still very childish. She wants to gain more experience and grow up faster. After being reprimanded by her math teacher, Shiina-sensei, she is required to attend extra lessons. One afternoon, when left alone with him in the classroom after school, Tsubaki becomes flustered as she notices a change in his usual demeanor. The story is part of a collection that includes four short tales: "Otona no Shoumei," "Misshitsu no Toraware Hime," "Oujisama no Manteau," and "Sakasama Message."