Yukino Kuzuki (Asu Nakamura), a general affairs clerk who works at the beverage manufacturer Cat Beverage, is about to turn 35.She was dumped by her boyfriend who was talking about marriage and is enjoying the single life.Although he works conscientiously in the company, he is treated as an easy target by his junior Rika Kimura (Masatsu Akimoto) every day.

One day, Yukino went to the system department with her friend Takako Suzuki (Ryoko Kobayashi) from the sales department. Takako introduced to her the 26-year-old young employee who recently joined the company, the most popular man in the company, Mizuki Aoshima (Shota Watanabe)..Just as Takako said, Qingdao was surrounded by female employees, and Yukino was not interested in him at all...

That night, Yukino was drinking alone at the izakaya he often went to after get off work. His friend Asako, who was going to have a wedding next week, called.Yukino scratched her head when she remembered that she had made an appointment to attend with her ex-boyfriend.At this time, Yukino suddenly glanced at the seat next to him. It turned out to be Qingdao from the system department whom he met during the day! Yukino, with the mentality of giving it a try, asked Qingdao to pretend to be her boyfriend and go to the wedding together.As a result, Qingdao readily agreed!

Putting aside the meaningful words of “I also happen to”, the “contractual love” between the two was established.

The next day, news spread in the company that Qingdao and Yukino were dating.It turns out that Qingdao spread the news on its own in order to “kill peach blossoms”.

“What do you want to do?!” Yukino asked.

Qingdao said that since they are pretending to be lovers, everyone must take it seriously.

Afterwards, the two of them were in the elevator, and other employees kept discovering that they were in love. Qingdao got even more playful and forcibly invited Yukino on a holiday date... They were obviously pretending to be dating, but Yukino was teased by the evil Qingdao!

Under such circumstances, the day for Yukino's friend to get married finally arrived.However, Qingdao never showed up.!?

Where will the two people's "agreed love" that started from a little lie go?