Live-action version! Girlfriend's Estrus Switch Part 1

[A gorgeous collaboration between Riho Shishido and the popular works of the FANZA doujin series, which have sold over 94,000 copies! ] The main character, Okamoto, falls in love at first sight with Ryo Watanabe, a cool girl he meets at his part-time job, but he is unable to get close to her. Meanwhile, she ends up taking care of Mr. Watanabe, who unusually attended a drinking party, and learns a secret about Mr. Watanabe. [She seems to get horny when her nipples are touched! ? ] After an incident, I suddenly approached Mr. Watanabe and spent a lewd night with Mr. Watanabe, who became horny. Afterwards, while learning her secret and continuing their relationship, the two of them decide to go on a first visit date. Something happened there that aroused Okamoto's possessive desire to have Mr. Watanabe all to himself, so he took her into the shadows... The digital-only original manga of the main story is also faithfully visualized!