An Archdemon's Dilemma: How to Love Your Elf Bride Episode 4: When an Archdemon Offers You Anything, You're Better Off Saying No

Nanoka sits among the silent devotees, observing Yoriko, a young woman presented to Shoko-sama, the cult leader. Shoko-sama projects serene divinity, while Yoriko trembles, clearly terrified. Sogen, a stern monk, approaches Yoriko, promising 'special guidance' for her soul, but Nanoka senses a deep unease. On the temple roof, Otoya reveals the cult's true motive: to inherit the assets of their deceased followers, a greed that disgusts Nanoka as she realizes they target Yoriko's father for his property.

Alone in a dark room, Yoriko watches a lantern flicker, unnaturally red, revealing a demonic face within. A hand reaches from the shadows, pulling her away. Later, Mao has spirited Yoriko to safety, explaining the 'miracle' was a manipulated curse, not a divine sign. He reveals the fiery demon was merely a trick to coerce her. Yoriko's shock grows as she understands the depth of the deception by those she had trusted.

Sogen and his monks discover Mao and Yoriko, threatening violence. Mao, without hesitation, leaps dramatically over them, carrying Yoriko to safety. Meanwhile, Nanoka and Otoya continue their investigation, a spiritual ember guiding them to a suspicious wooden panel in a storage warehouse. They pry it open, revealing a ladder leading into a dark, secret basement. The air crackles with the anticipation of uncovering something truly sinister.

In the hidden basement, Nanoka and Otoya find scrolls and forbidden texts, including those containing Mao's stolen techniques. The cult uses these to empower their deadly rituals. Suddenly, the trapdoor slams shut, locking them in darkness. Shoko-sama appears above, her expression cold and calculating, sealing their fate. Later, Nanoka franticly digs into the dirt floor, uncovering a horrific pile of human skeletons. The scale of the cult's murders is revealed, shocking Nanoka with its gruesome reality.

Mao brings Yoriko to Tenko’s café, where she tearfully recounts her father's death after taking Sogen's 'medicine.' Mao realizes the 'medicine' was poison, a fulfillment of the cult's prophecy. Back at the temple, Sogen rages at his monks for losing Mao and Yoriko, dismissing Shoko-sama and her concerns. Their interaction confirms Sogen is the true orchestrator, using Shoko-sama as a mere figurehead. We see Shoko-sama in a flashback, a young girl with genuine spiritual gifts, now lost, replaced by a hollow adult whose only true vision is destruction.

Mao stands at the temple gates, sensing the warehouse's malevolent energy, preparing for the final confrontation. Nanoka manages to break open the trapdoor just as Mao arrives, and she quickly shows him the human remains. Sogen enters, brandishing a naginata, surrounded by his monks. Mao remains calm, his eyes fixed on Sogen. He confronts Sogen about the stolen manuscript and the murders, then disarms him effortlessly with a single, swift sword strike, leaving Sogen stunned and powerless.

Shoko-sama enters the warehouse, revealing the truth: she has no powers. It was Sogen who used the 'Enmi' curse technique to kill his opponents. She points out the hidden wooden figures Sogen used to target Yoriko's father. Sogen is consumed by rage at her betrayal as his deception is fully exposed. Mao, disgusted by the perversion of his own techniques, decides to show Sogen the true nature of a curse.

Mao summons a massive, terrifying Kijin, which looms over the cowering Sogen. Sogen desperately tries to command the demon with his stolen mantras, but it ignores him, its gaze fixed solely on his fear. Mao explains the Kijin is under his complete control, a manifestation of the justice Sogen tried to evade. Mao then activates a 'Noroi-gaeshi,' a Curse Reversal. All the negative energy Sogen unleashed returns to him tenfold. He collapses, screaming as the vengeful ghosts of his victims crawl toward him from the shadows, accusing him with their silent, hollow eyes. Mao reveals the 'medicine' Sogen gave Yoriko's father was a lethal poison, brewed from toxic plants. Sogen's body convulses as both physical poison and spiritual curse consume him, a victim of his own cruelty.

Sogen completely collapses, his spirit shattered by the curse. Shoko-sama watches him fall, her expression unreadable. The police raid the temple, arresting Shoko-sama and the remaining monks after discovering the basement of human remains. As she is led away in handcuffs, Shoko-sama screams a final prophecy: a whirlwind of fire is coming, urging everyone to flee the capital. Her frantic, desperate warning leaves an unsettling impression on all who hear it.

Mao, Nanoka, Otoya, and Tenko gather at the café, explaining the cult's elaborate tricks to Yoriko, detailing the hallucinogenic incense and hidden lanterns that made Shoko-sama seem divine. Yoriko, though still grieving, finds some peace in knowing the truth and seeing justice served. Mao remains thoughtful, concerned about the potential for further evil from the stolen techniques. Nanoka observes that greed and manipulation easily deceive the desperate in any era. Mao's departure is a quiet but resolute act, leaving the group to process the recent horrors.

Nanoka returns to her modern-day Tokyo, surprised to find only an hour has passed. The experience in the Taisho era leaves her deeply shaken. Using her smartphone, she researches early 20th-century events to understand Shoko-sama's prophecy of a 'fire whirlwind.' The Great Kanto Earthquake of September 1, 1923, appears, causing massive fires and destruction across Tokyo. Nanoka realizes the terrifying implications: Shoko-sama's vision was a literal foresight of an imminent catastrophe. A sudden, overwhelming urgency washes over her, a desperate need to warn her friends before disaster strikes.