健全な高校生・陽太の前に現れたのは、セクシーすぎる家庭教師・葵だった! しかも、葵はセクシー女優・七里スミレに瓜二つで……!? 両親不在の中、葵先生に翻弄される陽太は煩悩に負けず勉強することができるのか!? セクシーすぎるお姉さんに教わる煩悩レッスンスタート! Hinata, an innocent high schooler, is suddenly confronted by his super sexy tutor, Aoi! In addition, Aoi looks exactly like the sexy actress Sumire Nanasato. WIth both parents out of the house, Hinata is at the mercy of Aoi-sensei. Will he be able to study without losing his mind? This is the start of a lesson about worldly desires taught by a super sexy Onee-san!