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!

浪人生の健二は高学歴な兄嫁・歩美に勉強を見てもらうため、兄夫婦の家に居候することに。しかし今まで勉強ばかりで女性に耐性がない健二は美しい顔を近づけられただけで理性が爆発寸前。とてもじゃないが受験勉強どころではない。そんな健二を心配した歩美が煩悩撲滅のため筆下ろしを提案してきて…。容姿良し、学歴良し、性格良し、全てを兼ね備えたハイスペックな兄嫁に中出しレクチャーしてもらえる最高の童貞卒業体験！