Surfer dude Houryu and shy intellectual Shouin are very much in love. Their days together are filled with happiness, but when Shouin's French tutor -- a handsome and openly gay man named Nanami -- makes his affection for Shouin known, doubts begin to surface between the couple. Houryu begins to believe Nanami's theory that Houryu is at heart a straight man and will turn to a woman when his experimentation period with Shouin is over.