Hatori is a tall girl who is frequently mistaken for a boy, and she is in love with her childhood friend, Keishi. Although Keishi is a boy, he is so cute that Hatori simply wants to pin him down and make him hers. Hatori experiences countless delusions and hallucinations (unbecoming of a young lady) racing through her mind every day—and they are all about Keishi. These fantasies cause her heart to pound and her nose to bleed!