Storm Dragon
The ancient Storm Dragon who spent 300 years sealed before becoming Rimuru's friend and a manager of Tempest's Labyrinth.
via Wikipedia: That Time I Got Reincarnated as a Slime (TV series) · see source
The Storm Dragon, Veldora, is a powerful dragon who was sealed for 300 years after reducing a town to ashes. He is befriended by the reincarnated slime, Rimuru Tempest, who promises to help destroy the seal. After exchanging names, Veldora bestows the name 'Rimuru' upon the slime and receives the surname 'Tempest' in return. Rimuru then consumes the dragon along with his prison to analyze the spell and eventually free Veldora. Following his release, Veldora is formally reintroduced to the world at the Walpurgis banquet and later helps manage the 100-floor Labyrinth alongside Ramiris.
Quick Facts
- Classification
- Legendary Dragon
- Location
- Tempest (Demon Lord City)
Lore & Background
Veldora is a powerful 'Storm Dragon' who was sealed for 300 years for reducing a town to ashes. He was discovered by Rimuru, a slime who had been reincarnated from the human Satoru Mikami. Feeling sorry for him, Rimuru befriended the dragon, promising to help destroy the seal. They exchanged names: Veldora bestowed the name 'Rimuru' upon the slime, and received the surname 'Tempest' in return. Rimuru then consumed the dragon together with his prison in order to analyze the spell and eventually free Veldora. The disappearance of Veldora's aura created a power vacuum in the Great Forest of Jura, which eventually made Rimuru the leader of all beings inhabiting the forest. Veldora was formally reintroduced to the world during the Walpurgis banquet after Clayman was defeated, and the 'Ten Great Demon Lords' were restructured into the Octagram.
Reader's Guide
The Storm Dragon Veldora is a central figure in the Jura Tempest Federation. After his release from a 300-year seal, he was formally reintroduced to the world at the Walpurgis banquet. Later, to celebrate Tempest's new status, Rimuru hosted a world-class festival where he introduced the 100-floor Labyrinth, which is managed by Veldora and Ramiris.
The Genesis of Rimuru and the Storm Dragon
The narrative foundation begins with Satoru Mikami, a 37-year-old corporate worker living in Tokyo. He is stabbed while saving a colleague from an assailant. As he succumbs to his injuries, a mysterious voice grants him various gifts and powers for his next life. He reincarnates as a slime in an unfamiliar world and acquires the 'Predator' skill. He stumbles upon Veldora, a powerful 'Storm Dragon' who has been sealed for 300 years for reducing a town to ashes. Feeling sorry for him, Satoru befriends the dragon, promising to help destroy the seal. They exchange names: Veldora bestows the name Rimuru, and receives the surname Tempest in return. Rimuru then consumes the dragon together with his prison to analyze the spell and eventually free Veldora.
Nation Building and Diplomatic Expansion
The disappearance of Veldora's aura creates a power vacuum in the Great Forest of Jura. This eventually makes Rimuru the leader of all beings inhabiting the forest, who accept him as a ruler. Together, they establish the nation of Tempest. The nation's growth attracts attention from foreign powers, from monarchs and legendary heroes to demon lords, some seeking alliances, others intending to destroy them. Key moments include Rimuru taming the demon lord Milim Nava with food and friendship, and defending the forest against Charybdis. Rimuru also travels to the Kingdom of Ingracia to teach Shizue's five 'Otherworlder' students, taking them to the Dwelling of Spirits to stabilize their mana.
Evolution into Demon Lordhood
During Season 2, while Rimuru returns from Ingracia, he is ambushed by the holy knight Hinata Sakaguchi, who seeks to avenge Shizu and believes Rimuru killed her. Simultaneously, the Kingdom of Falmuth and the Western Holy Church launch a surprise attack on Tempest. Devastated by the death of Shion and many citizens, Rimuru learns he can resurrect them by becoming a demon lord. He annihilates the 20,000-strong Falmuth army with the spell 'Megiddo' to trigger his Harvest Festival. He evolves into a true demon lord and summons the primordial demon Diablo. Rimuru then exposes demon lord Clayman's schemes at the Walpurgis banquet. After defeating Clayman, the 'Ten Great Demon Lords' are restructured into the Octagram, and Veldora is formally reintroduced to the world.
Franchise Longevity and Broadcast History
The anime television series adaptation, produced by Eight Bit and directed by Yasuhito Kikuchi, debuted on October 2, 2018. The first season ran for 24 episodes. A second season, delayed due to COVID-19, aired in two halves from January to March 2021 and July to September 2021. A third season aired from April 5 to September 27, 2024. As of February 2026, the franchise has produced three television seasons, multiple OVAs, and two theatrical films. A fourth season, consisting of an unprecedented five-cour broadcast, premiered on April 3, 2026, following the release of the second film, 'Tears of the Azure Sea'. The series is simulcast by Crunchyroll, with Funimation streaming an English dub.
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