犬の情報を交換するため、連絡を取り始めた佐藤唯（松井愛莉）と藍田航之郎（平岡祐太）は、天城恭一（速水もこみち）を含む3人でドッグランに出かけることになる。ところが当日、天城は予定をキャンセル。代わりに三島冴（田中道子）と過ごすと藍田に告げる。それを知った唯は、心にざわつきを覚えながらも、藍田の愛犬とともに久々にストレスフリーの時間を過ごす。その間、天城からの不在着信は100件以上に！かけ直さなければ永遠にかかってくることを知っている唯は、嫌々ながら天城に電話をかける。すると、電話にはホテルにいるという冴が出て…！後日、冴は多能性細胞開発成功に関する記者会見で、意中の男性が天城であることを公に宣言。隠し撮りされた二人の親密な写真も流出！それまで、自分以外の女性と何かあるわけがないと確信を抱いていた唯だったが…。
Yui Sato (Airi Matsui) and Konoro Aida (Yuta Hiraoka), who have begun to contact each other to exchange information on dogs, will go to a dog run with three people including Kyoichi Amagi (Mokomichi Hayami). However, on the day, Amagi canceled the schedule. Instead, he tells Aida that he will spend time with Sae Mishima (Michiko Tanaka). Knowing that, Yui spends a stress-free time with Aida's pet dog for the first time in a while, even though she feels a rush in her heart. During that time, the number of missed calls from Amagi has increased to more than 100! Yui, who knows that if she doesn't call back, will call Amagi forever. Then, the phone says that I am at the hotel ...! Later, at a press conference on the success of pluripotent cell development, Sae publicly declared that the man he was interested in was Amagi. Intimate photos of the two hidden shots also leaked! Until then, Yui was convinced that there was nothing to do with a woman other than herself ...
