That Time I Got Reincarnated as a Slime Season 3 Episode 3: Peaceful Days

Mariabell Rozzo stands in the dim light of her castle room, a child outwardly, but with an ancient soul. She reveals herself as a reincarnator, possessing memories and knowledge far beyond her years, a silent puppeteer in the making. Her small metal bird, a symbol of control, is caressed as she reflects on her past life, a European noble manipulating markets and waging wars from the shadows. She was reborn into royalty, greeted by doting parents and a loyal wetnurse, Eliora, but her infant face held no smile, only stoic observation. She was born with the unique skill 'Greed,' a terrifying power to perceive and dominate others' desires.

Young Mariabell approaches her grandfather, Granbell Rozzo, a legendary figure and founder of the Western Council. He sees through her youthful facade, recognizing the immense power she wields, having already subtly enslaved those around her. Mariabell calmly proclaims her identity as 'Mariabell of Greed,' explaining her skill's terrifying scope. Far from anger, Granbell is deeply impressed, seeing in her the perfect heir for his grand vision. He takes her to a balcony, revealing his ultimate ambition for the Rozzo family to rule humanity, forging a chilling pact between generations.

Deep within the labyrinth, the avatars of Veldora Tempest, Milim Nava, and Ramiris make a chaotic attempt to ambush Team Ryokuran. Veldora's skeleton form tumbles apart, while Milim's ghost avatar proves easily dodged, a comedic display of their initial incompetence. Back in the control room, Rimuru Tempest sighs at their loud bickering, pointing out the obvious: their avatars are weak and ill-equipped. He recognizes the dungeon needs a serious, strategic approach, not just powerful beings in flimsy forms.

Rimuru visits the bustling monster forge, where Kurobe and Garm oversee a diligent crew crafting weapons. He requests specialized, top-tier equipment for the avatars, gear unconventional enough to match their unique forms. The smiths are thrilled by the challenge, eager to push their skills to produce 'divine-level' items. The clanging of hammers and the heat of the forge underscore the dedication to this new, crucial task.

A montage shows the avatar trio practicing their teamwork in the labyrinth's shallower depths. Rimuru coaches them, emphasizing linked abilities and coordinated attacks. They battle lesser monsters and lower-ranked adventurers, gradually enhancing their forms. This consistent practice culminates in a flawless victory against a giant spider boss, a testament to their newfound coordination. Veldora lures, Milim restricts, and Ramiris delivers the final blow, a far cry from their earlier blunders.

Mjöllmile enters the control room, momentarily startled by Rimuru's avatar form, to report on Team Ryokuran's alarming progress. The elite adventurers are tearing through the dungeon, already reaching the 49th floor. Rimuru, with Ramiris's permission, uses Raphael to conduct a detailed magical scan of the team. The analysis confirms their A-rank leader and overall high skill, solidifying Rimuru's decision: a direct, tactical engagement with their upgraded avatars is the only way to stop them.

Kurobe and Garm arrive with the finished, divine-tier equipment, transforming the avatars into formidable warriors. Veldora becomes a menacing Skeleton Knight, Ramiris dons massive Heavy Armor, Milim becomes a specialized Slime, and Beretta transforms into a Ghost Mage. Meanwhile, Team Ryokuran steps onto the 49th floor, a damp cavern filled with mysterious green pools. Dozens of slimes emerge, and though initially mocked, they begin raining acidic liquid from above. The adventurers realize too late they have walked into a precisely engineered trap.

The acidic rain quickly corrodes an adventurer's shield and weapons, signaling the true danger. Before Team Ryokuran can react, Milim, in her specialized slime form, unleashes a high-speed beam of magical energy, instantly eliminating one foe. Ramiris, in heavy armor, smashes the floor, scattering the remaining adventurers, while Veldora as the Skeleton Knight engages their leader. The battle is fierce, a chaotic clash of steel and magic, as the elite team is overwhelmed. Beretta, as a Ghost Mage, prepares a final, devastating 'Holy Ray' spell, powered by Rimuru's complex computation. The blinding light engulfs the chamber, decisively ending Team Ryokuran's challenge.

In the control room, Veldora, Milim, and Ramiris celebrate their overwhelming victory with boisterous cheer and food. Rimuru reflects on the success, satisfied that the dungeon is now a formidable challenge, a true test for any adventurer. He notes the terrifying potential of using high-speed computation to manifest divine magic, a chilling thought amidst the festivities. The group toasts to their successful defense, a moment of well-earned, lighthearted relief.

The defeated Team Ryokuran regroups outside the dungeon, frustrated by their unexpected loss and the mission that now calls them away to the Western Council. In the Council's snowy capital, Yuki Kagurazaka meets with Gai, who expresses grave concern over Rimuru's growing influence. Yuki remains outwardly calm, his true intentions hidden, acknowledging the Demon Lord is becoming too powerful to ignore. The cold, sterile setting mirrors the calculating political maneuvering taking place.

Mariabell Rozzo enters Yuki and Gai's meeting, her presence immediately commanding. She directly challenges Yuki on his ability to defeat Rimuru, testing his resolve and loyalty. Yuki concedes that a direct fight is impossible due to Veldora's protection. Mariabell then reveals the true nature of her skill, 'Greed,' demonstrating its power to manipulate desires and break wills, turning victims into puppets. She plans to exploit Rimuru's desire for human cooperation, subtly influencing Yuki to send an invitation to the Western Council meeting. The episode concludes with Mariabell's eyes glowing, her ultimate goal to subjugate the Demon Lord and use him for the Rozzo family's global ambition, a trap chillingly set.