An elite salary man, his wife and and their child are murdered by an unknown assailant. The case initially made the headlines, but it is now an unsolved case.
One year later, Tanaka (Satoshi Tsumabuki) begins to cover the unsolved murder case. He is a reporter for a weekly magazine. Through an interview with someone who knew the murdered couple, Tanaka learns the murdered couple was far from the ideal couple that they appeared. The truth of the case begins to appear.
Yuji Tomioka (Teppei Arita) is a 38-year-old single man who has never dated a woman. He works the night shift as a security guard at a supermarket. He experiences loneliness during this time. One night, during a shooting star, he wishes to have friend. A mysterious neighbor, Azusa Hada (Tsubasa Honda), appears in front of him. They fall in love, but Yuji's life changes.
Nayuta Toge (Rio Uchida) is a professional Shogi player. Her games last for about 10 hours. She also thinks carefully about what she will eat during breaks in the game. Her choices in meals helps her win games.
Ogikubo, Hachimanyama, Chitose Funabashi, Futako Tamagawa, Kaminoge, and Denen Choufu... Loop line 8 travels along these six towns. Despite the short distance, it is necessary to change trains and take a circuitous route. There are women living in each of these towns who waver over love that has not turned out as they wish such as one-sided love, domestic violence, and affairs. Like “neighbors” who have to go a long way around, their relationships are loosely connected. They are somehow only able to see each other’s appearances maybe because of the nature of these relationships and then wonder why things are not going well for them personally. They worry and compare with others but still wish to look ahead.
20-year-old university student Anri is chased out of her house when her mother has a new boyfriend. While spending every night at different Internet cafes, Anri comes to know about "papakatsu" and subsequently meets a 45-year-old university lecturer Wataru. Anri then moves into the apartment which Wataru rents for her before finding out about a secret which he has been hiding from her.
Marin Sakamoto (Marie Iitoyo) and Tsubame Ishikawa (Rena Takeda) are first year university students. They hope to become ship navigators. The two women take part in a one month training program that consists of mostly of males. Marin Sakamoto and Tsubame Ishikawa face a severe training regiment and seasickness.
In Kyoto, Mayuko (Haruka Ayase) stands at a crossroad in her life. She's thinking about marriage with her boyfriend Kyoichi (Hiroyuki Hirayama). By an accidental opportunity, Mayuko stays at Honnouji Hotel. There, she meets historical figure Nobunaga Oda (Shinichi Tsutsumi) who is attempting to unify Japan.
Ai Kishimoto (Manami Higa), Yukari Miyazawa (Mimura) and Akane Kishimoto (Nozomi Sasaki) are sisters. The sisters live apart in Kanazawa, Toyama and Tokyo, but they gather together to attend their grandmother's funeral. There, they learn about their mother whom they know as deceased. While seeking out the the truth about their mother, the sisters face their own problems, but take a courageous step forward.
Yohei (Hiroshi Abe) is a middle school teacher and married to Miyoko (Yuki Amami). For the first time in 25 years, they begin to live by themselves after their son marries and moves out. One day, Yohei finds divorce papers which Miyoko keeps hidden, but he doesn't have the courage to ask her abut it and agonizes over the papers. His involvement with students and associate in a cooking class, allows Yohei to recognize the concept of an ideal family. He takes new first steps with Miyoko.
High school student Yuki Hase (Kento Yamazaki) wants to become close with classmate Kaori Fujimiya (Haruna Kawaguchi) who is alway by herself. Kaori Fujimiya refuses to become close with Yuki Hase, because she forgets her friends every new Monday. Even though Kaori tells Yuki why she doesn't want to become friends, Yuki still wants to become close to her.