Nanami Minagawa, played by Haru Kuroki, is a woman who feels disconnected from the world around her. Working as a part-time junior high school teacher, she is characterized by an apathetic demeanor and a quiet nature. Her only real source of comfort and emotional connection is "Planet," a modern social networking service where she can interact with others from a distance. Her life takes a sudden turn when she is contacted by a young man named Tetsuya, portrayed by Gô Jibiki, who expresses a desire to move their relationship from the digital realm to the real world. After meeting in person, the two begin dating and the relationship progresses rapidly, leading to an engagement.
As the wedding preparations begin, Nanami's internal insecurities and family complications surface. Although her parents are divorced, she and her mother, Harumi Minagawa (Tomoko Mariya), decide to pretend they are still together to maintain a facade of harmony for the sake of the union. Struggling with her own lack of confidence and a quiet personality, Nanami eventually loses her teaching position and makes the decision to quit her professional life entirely to become a housewife for Tetsuya. However, a new problem arises regarding the wedding guest list; Nanami is only able to secure two family members to attend. Fearing that the event will look strange and unbalanced with only his family present, Tetsuya begs her to find more guests.
In a state of desperation, Nanami reaches out to an online acquaintance named Yukimasu Amuro, played by Gô Ayano. Amuro describes himself as a jack-of-all-trades and operates a business that specializes in hiring professional actors to fill roles at social events, including weddings. To solve Nanami's dilemma, Amuro hires a group of actors to pose as her relatives and friends on her big day.
Once married, the honeymoon phase quickly fades. Nanami begins to notice that her husband has become despondent and seems to have lost interest in her. The situation escalates when Nanami discovers a mysterious earring in their flat, leading her to believe that Tetsuya is having an affair. Distraught, she contacts Gô Ayano again, asking him to investigate her husband's loyalty in exchange for a fee. While waiting for answers, Nanami is contacted by a strange man who claims to be the partner of the woman Tetsuya is cheating with. This man convinces her to meet him in a hotel room, but once there, his intentions shift as he attempts to seduce her. Terrified, Nanami flees to the bathroom and calls Amuro for help. Upon his arrival, it is revealed that the "scorned partner" was actually just another actor employed by Amuro.
The fragile stability of Nanami's marriage collapses a few weeks later. Tetsuya's mother confronts Nanami with accusations of lying and cheating, revealing that she has discovered the truth about Nanami's divorced parents. Furthermore, she has received a video showing Nanami in the hotel room with the actor. In a heated exchange, Nanami attempts to defend herself by accusing Tetsuya of cheating, but when she mentions the name of the supposed mistress, Tetsuya appears completely clueless. The misunderstanding spirals into a conflict, and an angry Tetsuya decides to split from her.
Left heartbroken and sinking into a deep depression, Nanami checks herself into a hotel, where she eventually finds employment working as a maid. During this period of isolation, Amuro reaches out to her with a unique proposal: he wants her to use her experience to act as a family member for another wedding. Nanami agrees and joins a troupe of fake family members, where she forms a bond with a fellow actress named Mashiro Satonaka, played by Cocco, and the two spend time drinking together.
Eventually, Amuro offers Nanami a new opportunity—a housekeeping job in a secluded, old mansion. Upon arriving, she is surprised to find that Mashiro (Cocco) is also working there as a maid. The infectious spirit of the mansion's sole resident begins to help Nanami open her heart and heal from her past traumas. However, as she settles into this new life, Nanami begins to realize that the reality of the situation is not what it seems. She discovers that Amuro, the mysterious mansion, and Mashiro are all part of something deeper and more complex, leading her to the realization that even dreams have their limits.
