Episode 6 of "The Wind Breaker" concludes with Suo's exhilarating battle and seamlessly transitions into the intense confrontation between Hiragi and Sako of Shishitoren, one of the five elite warriors within their ranks. An underlying venom of resentment fuels Sako's grudge against Hiragi, evident in their fierce clash. Sako swiftly asserts dominance, landing a devastating blow that sends Hiragi sprawling backward, seemingly defeated.
Sakura's emotions ignite as he hears Sako disparage both Furin and Hiragi. Umemiya, sensing his distress, calmly intervenes, enlightening Sakura on Hiragi's prestigious status as one of the Four Kings of Bofurin, who leads the formidable Tamonten team—a moniker synonymous with Bishamonten, the war deity who commands the battlefield. Just as Umemiya finishes his explanation, Hiragi, as if awakening from a slumber, stages a miraculous resurgence, reversing the tide of the duel.
A nostalgic flashback unveils their initial encounter: Sako, once bullied for his intellect, found sanctuary when Hiragi intervened, teaching his tormentors a harsh lesson. Under Hiragi's mentorship, Sako learned the art of combat, yearning to emulate his mentor's footsteps and join Furin High. His aspiration was dual-fold—to bolster Hiragi's ambition to become Furin's strongest, a dream that predated Bofurin's inception when Furin was merely a haven for troublemakers. However, Hiragi steered Sako towards carving his own path, revealing his pledge to support Umemiya instead. Betrayal gnawed at Sako, pushing him to seek strength through constant confrontations, until Choji and Togame recruited him into Shishitoren's fold.
Returning to the present, the tables have turned in Hiragi's favor. In a poignant voiceover, Sako confesses his desire to emulate Hiragi, still harboring affection for his former mentor. As Hiragi delivers the finishing blow, he gently cradles the unconscious Sako, shielding him from Togame's disrespect.
Rejoining Umemiya, Hiragi inquisitively wonders why Umemiya hasn't inquired about his past with Sako. Umemiya responds with serene understanding, stating he'll await Hiragi's readiness to share his story.
