Which Reincarnated As A Slime Characters Get Anime-Exclusive Scenes?

Rimuru Tempest (originally Satoru Mikami) is the big one — the protagonist who literally gets reborn as a slime in 'That Time I Got Reincarnated as a Slime'. He’s the classic example: an ordinary guy from modern Japan who dies and wakes up in a fantasy world as a lowly slime, only to start stacking overpowered skills like 'Predator' (later 'Gluttony'), learn names, make pacts, and build a whole nation. The show walks you through his metamorphosis from amusingly weak blob to a charismatic leader with a dragon friend (Veldora), a court of loyal named monsters, and political headaches that would stress any ruler. I love how the anime blends cozy slice-of-life moments in 'The Slime Diaries' with full-on kingdom-building and diplomatic intrigue in the main series — that mix is why Rimuru’s journey feels so satisfying; you get both the silly and the epic. There aren’t actually a bunch of different people reincarnated as slimes in the series — Rimuru is unique in that respect. What the story does play with are other kinds of isekai/summoning ideas: Shizue Izawa (often called Shizu) is a Japanese girl who was summoned into the world as a child and becomes a pivotal emotional anchor for Rimuru; many other major players are native monsters, demons, dragons, or humans who either awaken or evolve through naming and power shifts rather than being reincarnated from another life. So if you’re asking who’s a reincarnated slime, it’s Rimuru — but the world is populated by other transplanted humans and dramatic transformations that keep things interesting. Personally, I still grin thinking about how a slime became the calm, strategic center of such a bizarrely lovable court.

I've always been fascinated by how a single twist—being reborn as a slime—can anchor an entire story, and when you take the question literally, the simplest, clean answer is: there's one. In the canon of 'That Time I Got Reincarnated as a Slime', the main—and practically only—human who gets reincarnated as a slime is Rimuru Tempest. The manga follows Rimuru's journey from his reincarnation, through his growth into a nation-builder and a powerful being, and all of the chapters and side arcs revolve around him and the many people and monsters he meets and impacts. That said, the world of the manga is teeming with slime creatures, summoned manifestations, and shape-shifters tied to Rimuru's unique skills, so things can feel fuzzier if you interpret "reincarnated as a slime" more loosely. Rimuru's skill set spawns different forms and clones, and other characters can take on slime-like attributes or be transformed by magic and skills. Spin-offs, crossovers, and dramatic scenes sometimes show alternate versions, illusions, or comedic one-off slimes—which can make a literal count feel misleading if you're scanning panels fast. So, if you're asking strictly how many characters were originally humans who then came back as slimes in the main manga storyline: it's Rimuru, one. If you're counting every slime-like being, reincarnation-flavor cameo, or magical copy across the manga and spin material, then there are many more entities inspired by that single reincarnation moment. Either way, I love how the series uses that single reincarnation to build an enormous, lively cast—it's pretty addicting to follow.

Luminous Valentine's arc is fascinating because it's about ancient pragmatism. She's a ruler who has seen empires rise and fall, and her interactions with Rimuru are a careful dance of testing, evaluating, and eventually deciding this new variable is more valuable as a friend than a threat. Her development is in her shifting strategic calculations, not her personality.

Hot take: the whole conversation about who’s strongest in 'That Time I Got Reincarnated as a Slime' turns into a delicious stew of raw power vs. utility. For me, Rimuru sits at the center of that stew — not necessarily because he’s the single most destructive being, but because his toolkit is absurdly versatile. He can absorb, analyze, mimic, and redistribute skills, craft nations, and eventually stand toe-to-toe with Demon Lords and True Dragons. His growth curve isn’t just bigger numbers; it’s exponential utility. That adaptability often tips encounters in ways pure strength can’t. If you’re measuring raw destructive force, Milim Nava and the True Dragons (like Veldora) are terrifying. Milim’s mood-driven, catastrophic power makes her a walking apocalypse when she’s serious, and Veldora’s status as a Storm Dragon means reality-warping force and age-old magical might. Guy Crimson lurks on another tier: ancient, inscrutable, and his presence radiates authority the way a supermassive star radiates heat. His feats imply doctrine-level power rather than flashy one-off attacks. I tend to rank them by categories: raw destruction (Milim, Veldora), strategic and multipurpose power (Rimuru), and legacy/authoritative dominance (Guy Crimson). Diablo, Benimaru, and other high-tier subordinates can be terrifying in their niches, but when tables turn it’s usually the adaptable or reality-warping folks who decide the outcome. Personally, I love how the series mixes political weight, friendships, and sheer spectacle — that blend keeps every “who’s strongest” debate fun rather than purely mathematical.

The light novel isn't afraid to get technical about magic and skills in a way that borders on textbook writing. If you love hard magic systems with defined rules, costs, and interactions, this is a feature. If you find that boring, it's a bug. The anime translates these technicalities into visual shorthand—a glowing aura, a named attack, a character looking tired. It's a necessary and effective adaptation choice, but it means the underlying 'science' of the world is less prominent. For some, that's a loss of depth. For others, it's a removal of tedious detail.