Minato is a clumsy high school girl. When she went to the infirmary to lie down, she found a naked guy, and he kissed her! The guy is Chihiro, a tenth grader who is one year younger than she is. Minato is very interested in him, but he already has a girlfriend. Minato plans to give up, but...?

Note: Includes the one-shots Amai Yokubou, Only One, and Fake Lover.