Mitsuki, a college freshman who is popular with all the guys for her sweet and innocent demeanor, has just begun dating senior student Nishino, the most awkward guy in their college club. No one can understand why, especially Komazaki, whose attempts at picking up Mitsuki have all ended in polite rejections. Suspicious that there is more to their relationship than meets the eye, Komazaki follows the happy couple into an empty classroom... Moans of pleasure, words of domination, and a secret no one would've ever imagined...