Desperate college student Kenji moves in with his brother and sister-in-law, Miho, hoping she can help him study. However, he finds himself unable to resist her beauty, even when she just gets close to him. Although not what they intended, Miho suggests that Kenji could use some sexual release to relieve stress during exam season. As someone who has it all—looks, brains, and an amazing personality—Miho becomes the perfect candidate for Kenji's ultimate virginity graduation experience!