"You're squeezing my fingers more and more... and your expression is that of a woman." My body is twitching as he pets me. I thought she was a beautiful lady, but she's actually a naughty male beast!? Touko (26) is a sober woman who has decided to work behind the scenes at a beauty company that she has always adored. The reason is because she loves to see that moment when people become beautiful with makeup. One day, she meets Aoi, a beauty staff member who is in charge of demonstrating during events for new cosmetics, and she's fascinated by "her" skill and beauty. Aoi from the front stage and Touko from behind the scenes... When she thought that she could only admire Aoi from afar, a certain incident happened, and she suddenly became close to Aoi!? "I want to see the moment you transform." She traced her body with her long, beautiful fingers. She pushed her aside, and her wig fell onto her arm! At the same time, Touko finds out that Aoi is a man!? "I'll teach you the pleasure of a woman." He says so while kissing her forcefully with his hot kiss. He gropes her sensitive spots with his fingers. Even her wet pussy is throbbing. How is he going to change me with his hands...? 「どんどん指に吸いつくね…“女”の顔になってきてる」ねっとり愛撫にヒクつくカラダ──美人なお姉さんだと思ったら…正体はオスみたっぷりのエッチなケダモノ──!? 念願の美容系企業の裏方担当として働くことになった、地味系女・透子（26）。理由は、メイクで人が綺麗になる瞬間を見るのが大好きだから。ある日、新作コスメの実演イベントを担当する美容部員・葵に出会い、『彼女』の手腕と美しさに魅了される。表舞台の葵と、裏方の透子…憧れのままかと思ったら…とある事件をきっかけに、葵と急接近することに!? 「あんたが変わる瞬間を見てみたい」カラダじゅう長くて綺麗な指でなぞられて──咄嗟に跳ね除けると、腕に絡まるウィッグの感触！と同時に、葵が『男』だと知る透子──!? 「俺が女の快感を教えてやる」と強引だけど熱いキス。敏感なトコロを隈なく指で弄られて…濡れてきたアソコもじんじんとしてて…私、葵さんの手で…どう変わってしまうの──？