By the end of Episode 1, Rimuru is still a slime. He hasn’t fought a goblin, met a human, or built a nation. But he has absorbed a dragon god, gained sentient AI, and studied magic for years. The power is earned through patience, not plot convenience.
The episode opens not with swords or magic, but with office drudgery. Satoru Mikami, a 37-year-old unmarried construction manager, lives a quiet, lonely life in Tokyo. He’s not a hero. He’s not a gamer. He’s just… tired.
The pilot episode of That Time I Got Reincarnated as a Slime (commonly abbreviated as TenSura) effectively subverts the typical isekai (another world) formula. Instead of a hyper-competent hero reborn with a legendary sword or immense political power, the protagonist, Satoru Mikami, is reincarnated as a featureless, low-tier slime monster. The episode masterfully balances humor, unexpected tragedy, and the foundation of a compelling power-growth system, establishing a loyal fanbase and critical acclaim.
The episode does an exceptional job visualizing slime biology: That Time I Got Reincarnated as a Slime-S01E01-...
His initial panic is hilarious. He screams internally, “I don’t have a mouth!” yet manages to emote more than many human characters. This is the genius of the show—constraints breed creativity.
On October 1, 2018, That Time I Got Reincarnated as a Slime (often shortened to TenSura) premiered its first episode, titled “The Storm of Fate, Veldora.” At first glance, the premise sounded absurd—a 37-year-old salaryman dies and is reborn as a gelatinous blue blob in a fantasy world. Yet within 24 minutes, this episode shattered expectations, delivering heart, humor, and a surprisingly philosophical take on death and rebirth. It wasn’t just another isekai; it was the beginning of a cultural phenomenon.
This article breaks down Episode 1 scene by scene, analyzes its masterful pacing, introduces the core dynamics between Rimuru Tempest and the Storm Dragon Veldora, and explains why this first episode remains a gold standard for the genre. By the end of Episode 1, Rimuru is still a slime
"Bye-bye, reality. Hello, jiggle physics."
In the crowded graveyard of isekai anime—a genre so saturated that even its parodies now have parodies—one show in 2018 did the unthinkable. It opened with a 37-year-old salaryman getting stabbed on a Tokyo side street... and then spent the next twenty minutes making you fall in love with a gelatinous blob.
That Time I Got Reincarnated as a Slime (Season 1, Episode 1: The Storm Dragon, Veldora) is not just a pilot. It is a manifesto. It answers a question no one was asking: What if the ultimate power fantasy wasn't about swords, harems, or harems-with-swords, but about accounting, urban planning, and unlimited hugs? The episode opens not with swords or magic,
Here is how the first episode pulled off the greatest bait-and-switch in modern light novel history.
During his time with Veldora, Rimuru’s unique skills evolve. The most significant is **“Great Sage”—**a sentient skill that acts as a hyper-rational supercomputer in his mind.
When Rimuru consumes Veldora’s magical aura, Great Sage suggests analyzing dragon physiology. He doesn’t instantly become omnipotent. Instead, the episode ends with Rimuru devouring Veldora’s entire being—not to kill him, but to store the dragon’s consciousness safely inside his slime stomach while the seal dissolves. This shocking climax redefines “reincarnation” as mutual salvation.