Fukaya Sakurako is married to the owner of ‘Fukaya’, a long-established miso shop in Nagoya City. She lives comfortably with her husband Kazuhisa and their daughter Yuko, a university student. Sakurako is content with Kazuhisa, a family man whose redeeming feature is his kindness. Her worry is Yuko who pays no attention to school work because she has been chasing after Shugo, a popular singer-songwriter in Nagoya. One day, Sakurako sees Shugo’s post on social media and an exchange with a young man who is not even her own child begins over smartphone. This is in contrast to her ordinary daily routine and all very exciting for Sakurako. She naturally does not tell her daughter about it. Having aspired to become a songwriter when she was young, Sakurako starts to give Shugo advice on the lyrics for his new song. Then one day, Shugo proposes that they work together in Tokyo but ... is this love? Will Sakurako choose her family or him?

At the strong insistence of his father, Ushimatsu Segawa conceals his origins from a “buraku” area of low-class “untouchables,” leaving his hometown to serve as an elementary school teacher where he excels and is loved by his students. But he constantly struggles with the secret of his low-birth status and is disturbed by all of the discrimination levelled upon his class. It prevents him from pursuing a romance with Shiho, whom he meets at the temple where he resides, but who descends from a samurai family.

Middle-aged Riichi Takamiya drives the midnight bus between Tokyo and snow-swept Niigata, where he lives. Just as the relationship with his younger girlfriend is about to bloom, his emotionally desperate ex-wife suddenly reappears.

Story continues with the students' own conflicts, Koro Sensei’s identity and the fate of the world. The time limit for assassination is approaching.

The time of the New Generation Heroes is drawing to a close. Hiroyuki is being targeted by a dark power, forcing the other Ultra Heroes, from Ginga to R/B to appear and help the Tri-Squad battle these evil forces. But among them is Taiga's father? What has happened to Ultraman Taro?!