Garo: Soukoku no Maryu (lit. Blue Cries of the Demon Dragon) is the second film to the Garo series. The film serves as an epilogue after Makai Senki and leads up to The One Who Shines in the Darkness. The story continues after the events of Makai Senki. Having made a contract with Gajari, Kouga Saejima honors his end of the deal by traveling to the Promised Land to retrieve a part of Gajari: the Fang of Sorrow. After Kouga defeated Sigma, Gajari transported him to the Promised Land, however, his quest had unexpected results.

After hiding together in an abandoned barn one stormy night, wolf Gabu and goat Mei pledge to be secret friends, despite being natural enemies. They must overcome hardship and persecution in hopes of finding another forest where they can be together in peace.

Third-grader Himeno moves to a huge mansion in the country. However, she soon finds out it's a ninja house! The ninjas Akamaki, Aomaki, and Kiiromaki mistake Himeno for a princess and begin solving problems for her with their own unique skills. But that is not the full extent of their powers! When Aomaki and Kiiromaki combine, they form Midorimaki. Similarly, when Akamaki and Aomaki combine, they form Murasakimaki; and when Akamaki and Kiiromaki combine, they form Daidaimaki. Life with these colorful ninjas has only begun when they discover a large tornado heading for the mansion. What will happen to Himeno's family? Can the colorful ninjas protect Himeno?