Young men in college often become smitten with someone they meet within the campus walls. Kina, a college student, and Megumu, a graduate student, have started a sexual relationship. Will a misunderstanding cause them to part ways and reveal their true feelings? At the same time, Shibata-sensei, an assistant professor, and her colleague Kikugawa-sensei have shown signs of more than just a friendly relationship for several years. They are an experienced, charming couple compared to Kina and Megumu, who are still developing. Let's see where their romances take them.