A father named Ichiro, who had passed away, left his mother struggling financially while he gambled and drank during the day. His son Haruto was determined to escape this poverty-stricken life by studying hard and aiming for national university entrance exams. One day, their teacher recommended hiring a tutor for Haruto due to his poor performance. Enter Gomi, a beautiful and kind-hearted woman who quickly captures Haruto's attention. As they grow closer, Ichiro takes advantage of Haruto's absence to call upon Gomi under false pretenses. Unbeknownst to her, he has spiked her drink with a powerful aphrodisiac that awakens intense desires within her. She can barely contain herself as she succumbs to unrelenting pleasure, moaning and squirting profusely. In broad daylight, amidst sweltering heat, they engage in passionate intercourse in the filthy storeroom where Haruto studies. Ichiro's overwhelming lust leads him to give her multiple orgasms through nonstop middle-aged cock pounding action. Meanwhile, Haruto sleeps soundly nearby unaware of what's happening between them. This twisted tale unfolds as the once innocent female tutor finds herself repeatedly seduced and violated by her student's perverted father!

父親は他界した母の保険金を切り崩し昼間から酒を浴びギャンブルをするクズ親「一平」。息子「春人」はそんな貧乏生活から抜け出すために日々、独学で勉強に励み国立大学の進学を目指していた。ある時、「春人」を不憫に思った担任教師の勧めで家庭教師を呼ぶことになる。美人で優しい家庭教師の「芽依」に惹かれていく「春人」。楽しそうな2人が面白くない「一平」は「春人」が不在の時間を見計らい？をつき「芽依」を呼び出すのだった。ダメぇぇぇぇ！おがじぐなるぅぅぅぅぅ！強力媚薬で覚醒！抑えの効かない凄まじい快感の連続に叫ぶ！仰け反る！潮ぶちまける！蒸し暑い汚部屋で真昼間から教え子の父親と汗だくキメセク性交！絶倫オヤジの怒涛の中出しピストンに絶叫アクメ連発！来る日も来る日も媚薬とアクメ漬けの日々に壊れていく美人女教師！睡眠薬を飲まされ眠る息子の傍らでハメ倒す鬼畜親父！お父さまぁぁぁスゴいぃぃ！またイッちゃうぅぅぅ！