Breaking 27,000 copies sold! The highly popular circle, Team ☆Lucky's hit work "His Unknown Secret" is finally getting a live-action adaptation!! A naive student couple is approached by a nerdy old man on their way home from school. It turns out this man is the one she (Yui) met on a dating app before they started dating, and who she lost her virginity to out of curiosity about sex... Yui is pressured into another physical relationship, threatened with her compromising photos. Though she reluctantly agrees to sex out of fear of being discovered by her boyfriend, she gradually becomes addicted to the pleasure and starts seeking out the old man's cock on her own... This is the definitive version of an NTR work where a beautiful girl becomes obsessed with a nerdy old man's cock - a must-watch for those who enjoy this genre!

累計販売数2万7000本突破！ 超人気サークル、チーム☆ラッキーの話題作「彼の知らない秘密を入れて。」を堂々実写化！！ 下校中に冴えないおじさんから声をかけられた初々しい学生カップル。それは彼女（結衣）が付き合う前に性への興味からマッチングアプリで知り合い処女を捧げてしまったおじさんだった…。ハメ撮り写真をネタに揺すられ、再び身体の関係を迫られる結衣。彼にバレるのを恐れて渋々承知したSEXも次第に快感に溺れ、自らおじさんのチンポを求めていく…。美しい彼女が冴えないおっさんのチンポにハマっていく【胸糞注意】のNTR作品の決定版できました！※ 配信方法によって収録内容が異なる場合があります。