Welcome to Demon School! Iruma-kun Season 4 Episode 3: The Essence of a Dem-dol

A sepia-toned flashback shows a young Keroli, then known as Kuromu, observing a fellow trainee abandon her dreams in tears. Keroli's face, however, holds grim determination, a testament to her enduring will. This memory ignites a powerful vision within her: a grand stage filled with singing, dancing "Akudols." This vibrant, almost manic, dream sets the ambitious goal for the upcoming festival.

Back in the classroom, Keroli announces the festival roles, canceling regular classes. Iruma Suzuki is assigned "support piano," baffling Asmodeus Alice and Clara Valac, who expect a starring role for their friend. Keroli clarifies her choice, explaining that Iruma's charisma makes him a natural leader, capable of guiding the music. Iruma, moved by her trust, accepts the challenge, with the quiet Purson Soi joining him.

In the performance room, Sabnock Sabro demonstrates a demonic piano, which transforms into a thorn-covered beast under his powerful touch. He explains that an instrument reflects the player's soul. When Iruma timidly takes his turn, the fearsome piano morphs into a soft, candy-covered cloud. Sabnock advises Iruma to focus on a clear mental image to guide his playing, subtly acknowledging Iruma's gentle nature.

Keroli drops a bombshell on the dance team: they must all become "Akudols," or Evil Idols. The boys, including Lied Shax, Jazz M. Andro, and Kamui Caim, react with horror and embarrassment to the concept. Keroli calmly explains the technical demands and charisma required for such a performance, showing them images of flamboyant male Akudols to challenge their preconceptions. Yet, the boys remain deeply uncomfortable with the idea of wearing "sparkly" outfits.

Realizing words are not enough, Keroli sheds her glasses and performs an electrifying Akudol routine. Her entire demeanor changes, and her movements become sharp, fluid, and incredibly engaging, transforming her into the superstar Kuromu. One by one, the boys' defenses crumble, their eyes turning to hearts as they fall under her spell. Their protests forgotten, they now eagerly beg her to teach them how to achieve that level of performance, successfully converted to the Akudol cause.

Back in the music room, Iruma and Purson attempt their first joint practice, but Iruma's cloud-piano produces discordant squeaks that clash with Purson's trumpet. Purson delivers a brutally honest critique, noting Iruma's "bad" playing and lack of structure. Despite the harsh words, Iruma reflects on his past archery training and finds renewed resolve. He explains to Purson that Keroli's request, "It has to be you," fills him with a special excitement, a feeling Purson ironically recognizes.

Keroli suddenly appears, telling the boys their progress is unsatisfactory and a new, high-level instructor awaits. She leads them to a dimly lit room where Naberius Kalego sits at a menacing gothic piano, instantly terrifying Iruma and Purson. A flashback reveals Keroli leveraged Kalego's past festival defeat to secure his help. Kalego, surrounded by his intimidating Cerberions, forces the boys into brutal basic training, promising no quarter.

After hours of relentless practice, Kalego begins a theoretical lesson, recounting the legend of Lilith Carpet, the ultimate demoness and theme of their music. He then performs the piece himself on his gothic piano, creating a vivid, shared hallucination of golden chandeliers and a seductive Lilith. Iruma, shaken by the experience, is commanded to recreate this "world" with his own mental imagery. His attempts are comically innocent: a polite bow to Lilith, then a shared banquet of meat.

During a brief respite, Iruma receives supportive messages from Asmodeus and Clara. Seeing their cheers and knowing they are also working hard reignites his determination. He clenches his fist, resolute in his commitment to overcome his personal limitations. Their friendship becomes the anchor for his resolve.

Keroli introduces "Copycat Bracelets" to the dance team, designed to sync their movements. Asmodeus and Clara, a pair of stark contrasts, are sent to the indoor garden to practice. Asmodeus tries a technical approach while Clara embraces pure

Meanwhile, in the workout room, Lied and Sabnock achieve perfect synchronization, earning lavish praise from Elizabetta X. Her compliments ignite a competitive spark, leading them to try and out-dance each other for her attention. Jazz M. Andro and Kamui Caim observe with comedic jealousy. This external motivation, fueled by a desire for approval, helps bring their movements into alignment.

Witnessing the others' progress, Asmodeus and Clara feel renewed pressure in the garden. Asmodeus admits their current struggles make them the team's "weakest link." He then vulnerably suggests an "honest talk" to bridge the gap between their hearts. Clara listens quietly, her usual boisterous energy replaced by a rare seriousness, offering the simple wisdom that Asmodeus just needs to be himself.

A montage shows every member of the Misfit Class working late into the night. Iruma and Purson continue their basic scales under Kalego's terrifying watch, their playing now more structured despite their exhaustion. The school hums with activity: magical lights glow from windows, and the sounds of music and rhythmic steps echo through the halls. Each character pushes their limits, fueled by a collective ambition for the festival.

In a post-credits skit, the Iruma-obsessed student Eiko discovers the cloud-piano Iruma used. Upon her touch, the instrument grotesquely transforms, covered in glowing, heart-eyed photos of Iruma Suzuki. Her friend Gaako observes with palpable disgust. This provides a final, comedic beat, highlighting Eiko's unwavering, if unsettling, devotion.