Long ago, a fallen Makai Priestess named Higari became too powerful and after tampering with powers no one should wield, she had to be stopped and was eventually sealed away by another Makai Priest named Sougen. Using his body and his own life, he created the Tougen Flute and sealed Higari shortly after his death. However, through a special ritual, those who seek Higari's power can resurrect her by replaying eight notes on the Tougen Flute to undo Sougen's seal. In the present, while Kouga Saezima has travelled to the promised land (Garo: Soukoku no Maryu), two fallen priests,Jabi and Rekka, will attempt to return Higari.

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.

Lurking among us are the Horrors, ancient enemies of our kind hailing from another realm. Holding the line against them, down through the ages, are the Makai Knights. Across generations, the men of the Saejima family have assumed the lupine aspect and magical armour of Golden Knight Garo—Raiga, before him Kouga, and before him Taiga, whose spirit has watched over his descendants. Little of Taiga’s tale has been revealed—until now. A new adventure harkens back to Taiga’s tenure as Garo, recalling his childhood training, his dedicated pursuit of his demonic foes, and the challenge he faces when a sacred artifact containing the souls of four elemental guardian spirits is stolen by Jado, a powerful Horror, who plans to unleash legions of evil into our world.

The current wearer of the gold wolf armor Garo, doesn’t believe women can be chosen to wear mystic armor. When Kouga's quest thrusts him into conflict alongside Priestess Rekka, he’s forced to acknowledge that the female species can be deadly!

Ryuga Dogai returns to investigate a new mystery - the theft of Makai Knights armour. Among the victims are Ryuga's old comrades from the Volcity crisis, Takeru and Aguri. The three will face off against an enemy previously though defeated - Zinga.

In this dark fantasy action movie, a Makai Knight named Kouga Saejima must face off against a powerful demon and save humanity from its reign of terror. With his powerful sword and supernatural abilities, Kouga fights to protect the innocent and confront the ancient evil that threatens to destroy everything he holds dear.