七海麻美（秋田汐梨）から突然、彼氏のフリをして両親に会ってほしいと頼まれた木ノ下和也（大西流星）。事情がありそうな元カノを放ってくことができず、先約の水原千鶴（桜田ひより）とのレンタル・デートをキャンセルすることに。それを知ってか知らずか、麻美は千鶴のもとへ向かうと、和也との関係を邪魔しないようにと忠告し…。
約束の日、和也が偽物の彼氏として麻美の両親との食事会に出かけると、その店には偶然にも接客中の千鶴が！厳格そうな麻美の父に緊張しつつも、気づかれないよう千鶴の動向をうかがう和也。その様子は、いつもの千鶴とは違って見える。実は、千鶴は派遣会社の手違いで、いわく付きの客を相手していたのだ…。
重たい空気の食事会にあって、和也は懸命に役割を果たそうと努力する。一方、先に店を出た千鶴には、ある危険が迫ろうとしていた…！！
Kazuya Kinoshita (Ryusei Onishi) is suddenly asked by Asami Nanami (Shiori Akita) to pretend to be her boyfriend and meet her parents. Unable to let go of his ex-girlfriend, who seems to have some circumstances behind him, he decides to cancel his previous rental date with Mizuhara Chizuru (Sakurada Hiyori). Knowing it or not, Asami goes to Chizuru and she advises him not to interfere with her relationship with Kazuya. On the day of the appointment, when Kazuya goes out to dinner with Asami's parents as a fake boyfriend, Chizuru happens to be serving customers at the restaurant! Kazuya is nervous about Asami's strict-looking father, but keeps an eye on Chizuru's movements so that he won't be noticed. The situation looks different from the usual Chizuru. In fact, Chizuru was dealing with a customer with an excuse due to a mistake by her dispatch company. On the other hand, Chizuru, who left the store first, was approaching a certain danger.
