Chronicle of Tempest

Satoru Mikami, a 37-year-old corporate worker, dies and is reincarnated as a slime in the Great Jura Forest with unique abilities.

Rimuru saves a goblin village from dire wolves and forms the first alliance, becoming their leader.

The Orc Lord leads a massive army threatening the forest. Rimuru forms an alliance with the Lizardmen and Ogres to stop the invasion.

The Kingdom of Falmuth attacks Tempest while Rimuru is away, resulting in the deaths of many citizens including Shion.

Rimuru evolves into a True Demon Lord through the Harvest Festival, gaining immense power and transforming Tempest forever.

Rimuru attends his first Walpurgis as a newly awakened Demon Lord, meeting the other members of the Octagram and establishing his position in the supernatural hierarchy.

The Eastern Empire launches a massive invasion against Tempest, underestimating the power of the newly awakened Demon Lord and his evolved subordinates.

Following the decisive defeat, the Eastern Empire negotiates a comprehensive peace treaty with Tempest, marking a new era of cooperation and mutual respect.

Velzard, the Ice Dragon and Veldora's sister, arrives in Tempest to investigate her brother's freedom and assess the threat level of Rimuru Tempest.

Velgrynd, the Scorch Dragon, conducts her own investigation into Tempest and Rimuru's capabilities, leading to unexpected revelations about parallel worlds and dimensional travel.

Rimuru and Ramiris collaborate to construct the Great Labyrinth of Tempest, creating a massive dungeon system that serves as both defense mechanism and training ground.

The Eastern Empire launches its ultimate invasion against Tempest with overwhelming military force, including advanced magical weapons and elite soldiers, in a desperate attempt to eliminate the growing threat of Rimuru's nation.

Velgrynd, the Scorch Dragon, intervenes in the war between Tempest and the Empire, leading to a dramatic confrontation with Veldora and revealing deeper connections between the True Dragons and the ongoing conflict.

Hinata Sakaguchi confronts Rimuru in what appears to be their final battle, but reveals deeper motivations and ultimately leads to a resolution of the conflict between the Western Holy Church and Tempest.

The Western Holy Church undergoes major reforms under Hinata's leadership, abandoning its anti-monster policies and establishing new diplomatic relations with monster nations, particularly Tempest.

The Ultimate Skill Michael awakens and begins manipulating events from behind the scenes, seeking to establish a new world order under angelic rule and eliminate threats to its vision of perfect order.

Michael attempts to dominate the world through manipulation of key figures and direct confrontation with the Demon Lords, leading to a cosmic-scale battle that threatens the very fabric of reality.

Yuuki Kagurazaka reveals his true nature as a multiversal threat, having gained power across multiple timelines and realities. His ambition extends beyond mere world domination to complete universal control.

Rimuru achieves complete mastery over multiple Ultimate Skills, transcending normal limitations and preparing for the final confrontation with cosmic-level threats. Ciel evolves to become an independent consciousness.

The ancient evil Ivarage awakens, representing a threat that transcends even the True Dragons and Demon Lords. This primordial entity seeks to return the world to primordial chaos, threatening all existence.

The ultimate battle against Ivarage brings together all of Rimuru's allies and former enemies in a desperate fight for existence itself. This confrontation determines the fate of not just their world, but all possible realities.

With all major threats eliminated, a new world order emerges with Tempest at its center. Rimuru, now recognized as a true god-like being, works to establish lasting peace and prosperity across all nations and species.