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In Fire Force Season 3 Episode 9, titled “Holy Sword, Resurrected,” the spotlight will shift toward Arthur Boyle as he journeys alone into the Nether, following a misunderstood clue left by Vulcan. Believing he will find the means to forge a new Excalibur, Arthur ventures deeper into the underground realm, still clinging to his fantasy-driven logic. The episode is expected to blend humor and mystery, highlighting Arthur’s unique perception of reality while gradually unraveling hidden truths about the Nether’s connection to the Adolla world.
As Arthur explores the eerie depths, he may come across unidentified figures or relics linked to his past, setting up a more serious arc around his origins and latent power. These encounters might foreshadow Arthur’s growing importance in the broader fight against the Evangelist, especially considering his past ties to the Holy Sol Temple and his innate resistance to Adolla’s influence. His delusional yet unwavering belief in heroism and chivalry might unexpectedly lead him to awaken a new strength or receive cryptic guidance from a mysterious source, potentially tied to the Pillars or the doppelganger concept introduced earlier.
Meanwhile, back on the surface, Shinra Kusakabe and his allies will likely regroup after escaping Sister Sumire. Shinra may experience another Adolla Link, possibly with Hibana or even a deceased character connected to the latest combustion events. This would continue to expand his understanding of the Adolla realm and the ongoing Great Cataclysm, which seeks to merge the real world with Adolla through large-scale combustion and spiritual destabilization.
Episode 9 will also delve deeper into the revelation that Sumire is the seventh Pillar, a shocking twist that reframes much of the series’ religious and scientific backdrop. Her confession regarding doppelganger experimentation and Adolla bugs further implies that the lines between life, death, and dimensional existence are blurring—especially as human doppelgangers continue to emerge and combust when overlapping with their originals.
Fire Force Season 3 Episode 9 airs on May 31, 2025, at 1:53 am JST. International viewers, depending on their region, can stream the episode on May 30. In Japan, it broadcasts on MBS, TBS, CBC, BS-TBS, and NBC, and is available for streaming on Netflix. Globally, the episode will be accessible via Crunchyroll for those with a subscription.