Due to an accident, Sakura Hiraga gave up on her dream. She is now married and her husband runs a hair salon. They live in a luxurious penthouse apartment. Her life seems glamorous and she is envied by everyone. What everyone does not know is that Sakura Hiraga is abused physically and verbally by her husband. She is unable to leave her situation. Sakura Hiraga considers herself a goldfish in a fishbowl. One day, due to a goldfish, she meets a man.
After her swanky birthday party announcing a new branch of her husband's salon, Sakura decides to buy a goldfish. Sparks fly with shop owner Haruto.
Rumors about what Sakura did start circulating online. Rejected by her husband after saying she wants a baby, Yuka reconnects with her ex-boyfriend Jun.
Noriko's husband shares the bento she made for him with his coworker Tsuta and makes him an unusual offer. Haruto's sister Ran asks Sakura to leave him.
Sota and his wife Saya used to go running together, but now she drinks all day and barely leaves the couch. Sakura and Haruto visit Kamakura.
A lawyer for Haruto's father's corporation pays Haruto a visit. While out walking her dog, Hisako bumps into a man she doesn't recognize.
Hisako continues seeing Baba, but her son tells her he knows what's going on. While Takuya tries to track down his wife, Haruto finds out where she is.
Haruto helps Sakura get away and tells her about the accident seven years ago. Yuriha struggles with her husband prioritizing his mother over her.
The Hiragas' divorce case goes into arbitration, and Haruto speaks with his father. Two years later, the women are all leading very different lives.
