“Rent-a-Girlfriend” offers a dreamlike romance to men who don’t have much experience with girls. Shiori, working as a fake girlfriend, always carries a smile on her face in front of her clients. However, underneath her smile, she feels a burst of loneliness, longing for her ex-boyfriend, Genki who has broken her heart. One day, a new client named Shota who looks exactly like Genki appears in front of Shiori. Confused and unexpected, Shiori sees the image of her ex-boyfriend in Shota who has shown up for a two-hour date for 10,000 yen. Their first date has started.

恋愛が苦手な男性に、ひとときの夢を与える「レンタル恋人」。「レンタル恋人」として働く詩織は客の前では笑顔を常に絶やさないが、心の中ではか つての恋人、元気のことを未だにひきずり深い孤独を抱えていた。ある日、新たな客として現れた翔太。
その翔太はかつての恋人の元気と瓜二つ。戸惑いながらも翔太の中にかつての恋人の姿を重ねてしまう詩織。２H１万円の初デートが始まった。