Student and teacher. Man and... man. Taboo upon taboo is what Hikaru and Shima have to overcome if they want to pursue their feelings for one another. Uikaru, a second year high school student, is obsessed with Shima, a male teacher. Surprisingly, Shima is not averse to the boy's affections. He even convinces Hikaru to study hard so that when he graduates, they would openly become lovers. However, Amamiya, an ex-lover of Shima, steps into the picture...