From the Northern Country

The series began as a 24-episode drama in 1981-1982, but its success led to a long-running franchise concept spanning over 20 years, with 8 special drama episodes airing from 1983 to 2002 to follow the growth of the child actors over a decade, like an epic saga.

The original 1981-1982 series involved an unusually long location shoot of about 1 year and 2 months in Furano, Hokkaido, which was considered exceptional for Japanese television production at the time.

The show's ratings started in single digits but climbed steadily to surpass 20% for the finale, averaging 14.8% overall; despite a deficit of over 100 million yen after the initial run, video sales later generated profits of over 2 billion yen.

On the day the final episode aired, Fuji TV took out thank-you advertisements in newspaper morning editions, and the network received over 10,000 letters from viewers.

The theme song was composed and scatted (wordless vocalizing) by singer-songwriter Masashi Sada.

The distinctive way the character Hotaru calls out to foxes in the show, saying 'Rūrururu,' was based on a real-life habit of screenwriter Sō Kuramoto, who used to call out with a similar phrase to wild animals, including an actual wild fox, that gathered around his home after he moved to Furano.

Screenwriter Sō Kuramoto conceived an unproduced prequel concept called 'Kita no Kuni Kara 1900,' which would have explored the Kuroita family's roots, depicting an ancestor from Tokushima's Hachisuka clan migrating to Hokkaido and a water dispute with a rival family whose children fall in love, mirroring the main series' themes.

According to production notes, an unfilmed script was planned before '95 Himitsu' focusing on a romance between the characters Goro and Shu, but the idea was scrapped because protagonist Jun would not have been involved in the story, which was deemed inappropriate for the series.

In the '92 Sudachi' special, a depressed Goro is inspired by hearing Tsuyoshi Nagabuchi's song 'Nishi-Shinjuku no Oyaji no Uta' ('Song of the Old Man of Nishi-Shinjuku'), which gives him the resolve to build a house made entirely of stone.

Screenwriter Sō Kuramoto continued to develop unproduced concepts and story treatments for the series for decades after it ended, including post-finale character epilogues, alternate storylines incorporating the 2011 Tōhoku earthquake and tsunami (in which the character Shoukichi dies), and a 2021 tribute story titled 'Kita no Kuni Kara 2021 Hitori' written after lead actor Kunie Tanaka's death, imagining Goro's own passing in the mountains.