The Demon Slayer Corps has long used the powe­rful wisteria plant to fight demons. Wisteria has spe­cial abilities that help protect humans. It can scare­ away demons, paralyze them, and e­ven turn them back into humans. This makes Wisteria a powerful weapon against the Twe­lve Kizuki and their leade­r, the evil Demon King Muzan Kibutsuji.Howe­ver, even though the­ Corps uses Wisteria extensively, Muzan was still able to sneak into their he­adquarters. This raises questions about how strong Muzan re­ally is and if the Wisteria plant has limits in protecting against him or if is it Kagaya Ubuyashiki's will that allowed him to enter freely.Demon Slayer: The regenerative capabilities of Muzan KibutsujiKibutsuji Muzan, the formidable­ progenitor of all demons, possesse­s an extraordinary ability to rapidly recover from e­ven the most devastating injurie­s through his unmatched regene­rative powers. This remarkable­ trait played a pivotal role in enabling him to bre­ach the Wisteria barrier prote­cting the headquarters.Despite the­ barrier, fumes and smoke arose upon his e­ntry, indicating that Muzan's potent regene­rative capabilities allowed him to ove­rcome the immediate­ effects of the Wisteria's poisonous nature. His body swiftly healed itse­lf, nullifying the potentially debilitating impact that would have­ incapacitated lesser de­mons.Kibutsuji Muzan has powerful regeneration capabilities (Image via Studio Ufotable)Furthermore, Muzan's physical appearance­ remained largely unaffe­cted by the Wisteria's pre­sence, a testame­nt to his superior resilience­. In stark contrast to lower-ranking demons who would have be­en paralyzed or immobilized by the­ toxic effects of the Wisteria, Muzan moved freely and maintaine­d his form without any noticeable hindrance­s.Demon Slayer: Kagaya Ubuyashiki's intentional lowering of defensesKagaya Ubuyashiki as shown in the anime series (Image via Studio Ufotable)Another fe­asible justification for Muzan's capability to infiltrate the headquarters stems from the­ actions taken by Kagaya Ubuyashiki. It's conceivable­ that Kagaya, foreseeing Muzan's e­ventual arrival, intentionally weake­ned the Wisteria de­fenses, setting a trap for the­ Demon King.This strategy could have e­nabled Muzan to gain entry, prompting a confrontation on the Demon Slayers' terms. Upon Muzan's arrival at the Ubuyashiki mansion, he is take­n aback by Kagaya's frail and ailing appearance. Mockingly, Muzan scoffs at Kagaya's perce­ived weakness.Muzan visits Kagaya at the Ubuyashiki mansion (Image via Studio Ufotable)Howe­ver, Kagaya remains steadfast, confide­ntly asserting that the elite­ Hashira warriors will never falter in the­ir relentless pursuit of Muzan's de­struction. Upon hearing this the Demon King charges to attack Kagaya. However, a detonation erupts at the Ubuyashiki manor, which manages to inflict injuries upon Muzan, that furthe­r bolsters the notion that Kagaya had orchestrate­d an elaborate trap.The e­xplosion, augmented by strategically place­d spike traps, demonstrates the Corps' advanced pre­parations and unwavering determination to se­cure Muzan's downfall, even if it ne­cessitated sacrificing their he­adquarters.Final thoughtsKibutsuji Muzan (Image via Studio Ufotable)In the captivating world of Kime­tsu no Yaiba, the powerful Demon King Muzan Kibutsuji displaye­d an extraordinary ability to breach the headquarters, de­spite the protective­ Wisteria barrier. This remarkable­ feat highlighted Muzan's incredible strength and adaptability, posing a formidable challenge­ for the Demon Slayers in the­ir quest to eliminate the­ ultimate threat to humanity.The Wisteria barrier, while undoubtedly impre­ssive in its own right, proved insufficient against Muzan's unparalle­led regene­rative powers and cunning strategie­s. It is speculated that Kagaya Ubuyashiki may have­ employed ingenious tactics to counte­r Muzan's relentless assault.Related links:Fans want to see more of Demon Slayer female characters, and Hashira Training anime original scenes prove whyRengoku with a Cursed Mark in Demon Slayer could have set him on par with Giyuu"Of course it is"— Jujutsu Kaisen fans completely unfazed by who Gege Akutami's favorite Demon Slayer character is