Natsuko

Komukai Riko is a young single woman and works for an event planning company. She is considered average in regards to her personality and appearance. One day, her co-worker mentions person of a mass production model. Komukai Riko asks herself if she could be such a person for a mass production model and she answers her question affirmatively. Around this time, she happens to see plastic model Zaku at a neighborhood store. Zaku is a robot from TV anime series Mobile Suit Gundam. She becomes interested in plastic models and challenges herself to make her first plastic model.

Mano Reiji, a man who experienced a gruesome incident, is a forensic researcher at the Tokyo Metropolitan Police Department's Investigative Science Research Institute. Under the belief that "appraisal will result in the truth" and with his vast knowledge, Mano approaches cases from a view point that differs from others. On the other hand, Sawaguchi Nonna (Araki Yuko) is a rookie forensic researcher that begins working with the no nonsense Mano. They are forced to work together on a murder case.

The story follows Aya from the time she moves to Tokyo at age 23 up until she turns 40. Aya has to adjust to the different values and perceptions of the big city as she struggles with challenging situations. We get to follow Aya’s move from one neighborhood to another as she maneuvers her career and love life.