That Time I Got Reincarnated as a Slime — Season 4
The burgeoning nation of Tempest thrives under the leadership of Rimuru, who remains steadfastly committed to forging an alliance between humans and monsters—a dream slowly taking shape. But not everyone shares his vision for peaceful coexistence. Granville Rozzo and his granddaughter, Maribel, arrive with a starkly different approach: they believe humanity can only be safe through absolute rule, putting them directly at odds with Rimuru’s methods. Across the land, in the kingdom of El Dorado, Demon Lord Leon quietly pursues his own ambitions. And looming on the horizon is an ominous sign – the imminent awakening of a new Hero, promising to shake the foundations of their world.
The city of Tempest flourishes in the wake of a triumphant festival, yet an unforeseen complication now shadows the recently opened dungeon.
Gathered together, Rimuru and his loyal friends considered ways to enhance the dungeon, exploring possibilities with thoughtful deliberation.
With the confrontation against Team Green Fury looming, Rimuru, Ramiris, Veldora, and Milim dedicated themselves to refining their avatars, striving for absolute readiness.
Within the chambers of the Western Council, debate unfolds concerning the potential admission of Tempest into their ranks.
The meeting convened to decide whether Tempest would be admitted into the Council of the West, and Rimuru was present for its proceedings.
The Council’s escalating requests, each more outlandish than the last, began to dawn on Rimuru: something larger, something far more intricate, was unfolding beneath the surface.
The questioning of the man who attempted to assassinate Prince Elric exposes the hidden hand manipulating events within the Council itself.
Glenda divulged everything she knew concerning the Council and the Rozzos, and then Rimuru turned his attention toward examining some long-forgotten ruins.
The exploration of the ancient ruins of Amrita commences.
Within the crumbling heart of the ancient ruins, Rimuru and Mirabel finally stood opposite one another.
With Rimuru’s aid, Milim faced the Chaos Dragon—a twisted echo of the infant dragon who had once been her companion.
Rimuru shares his plans for Tempest's future, including a new system of government and Council representation.
Ramiris and Veldora are feeling overworked, so they ask Rimuru to find assistants for them.
Diablo returns with new demon subordinates to add to Tempest's ranks.
As Tempest continues to grow and evolve, the Moderate Harlequin Alliance approaches Demon Lord Leon.
Luminus meets with Rimuru to discuss Gran and future plans.
While Leon seeks Elmesia's help in finding Chloe, Granville's forces invade Lubelius.
An army of demons advances from the north, leaving the Western Nations in turmoil.
Granville's true plan is revealed, but it may already be too late to stop it.
When Chloe's Time Traveler skill kicks in, Hinata's soul is sent to the past along with her.
Chloe and Hinata meet Luminus and begin their journey as Chronoa.
Chronoa is freed from her seal—not as a Hero, but as an avatar of destruction.
Shion and Ranga continue to battle Razul while Rimuru struggles to save Chloe and Hinata.
Rimuru has Raphael interfere in Chronoa's Unlimited Imprisonment skill to save Hinata and Chloe.
