Lina Inverse Megumi Hayashibara and Gourry Gabriev Yasunori Matsumoto travel to the town of Acassi, famous for its tasty octopus and the curious magic that surrounds it. The twist is sinister: the octopus meat in Acassi is cursed, turning anyone who eats it into a speaker of takogo — the octopus language. On top of that, curses laid on sorcerers and sorceresses bind their magic, because the spells must be spoken in a common tongue to work. The town’s savory temptation becomes a dangerous trap for anyone who wields real power.
Gourry ends up biting into one of the cursed cephalopods after a brief spat with Lina over the last piece, and soon he too speaks takogo. This sudden shift spirals into a string of awkward and comic moments throughout the film, including Lina’s irritation when the misinterpretation of a line turns the phrase “how horrible” into something embarrassingly offensive. The humor quickly gives way to a more serious tension as the town’s mood thickens with the new linguistic curse.
Before long, the takogo contagion spreads beyond Lina and Gourry. Everyone in Acassi, including Amelia Masami Suzuki and Zelgadis Hikaru Midorikawa who have just arrived, adopts the speech, pulling the group into a town-wide crisis. The enigmatic Xellos Akira Ishida appears and seems to know more than he’s willing to share, lurking with his usual mix of cryptic charm and withheld knowledge.
It becomes clear that the octopuses’ plan hinges on tapping into the villagers’ anger to unleash a demon that was sealed away many years earlier. Lina and her friends must intervene before the dormant power can be released. Yet the mission is complicated when Lina herself becomes infected with takogo, a development that severely curtails her magical abilities, including her feared Dragon Slave, leaving her and the group vulnerable at a critical moment.
As the stakes rise, the team navigates a web of magical constraints, strange language, and patient strategizing to counteract the curse’s spread. They must unravel who is behind the plot, how the takogo affliction spreads so quickly, and what it will take to sever the link between speech and spellwork. The overriding goal remains clear: stop the octopus’s diabolical scheme before it bears fruit and unleashes the demon it has been stirring up in Acassi.
Shugoshin / Guardian Deity Gorō Naya watches from the shadows, while the others—masterfully supported by Naga the Serpent Maria Kawamura and Rūma Yuri Shiratori—must rely on wit, teamwork, and selective speech to counteract the curse. The tension between magic and language tests the limits of Lina’s leadership and the group’s camaraderie, forcing them to adapt to a world where every word carries weight and every sentence could alter fate.
In the end, the battle against takogo and the demon’s return demands restraint, cleverness, and courage from Lina and her companions. They push back against the curse’s influence while racing against time to avert catastrophe, even as Lina’s own powers waver under the spell she has to overcome. The story blends humor with high-stakes fantasy, underscoring themes of friendship, resilience, and the cost of power when language itself becomes the battlefield. The mission remains to halt the octopus’s plan before it fully unravels Acassi and to restore speech to its rightful, magical balance.