Season 1
24 episodes Oct 6, 2024 9.9
Overview
The slime created by the boy Kotarou can transform into a super beautiful girl! Kotarou is constantly getting pushed around by Puniru's freewheeling antics. It's a joyful and exciting life every day!
Seasons
1 listed- Status
- Returning Series
- Seasons
- 1 season
- Episodes
- 24 episodes
- First aired
- Oct 6, 2024
- Last aired
- Sep 21, 2025
- Episode length
- 24m
- Networks
- TV Tokyo, TV Aichi, TVQ, TV Osaka, TVh, TSC
Latest episode: S1 E24 That's What the World Calls Love (Sep 21, 2025)
Cast
Reviews
5 min readA Slime, a Mirror, and the Weirdness of Wanting to Be Seen
What surprised me about Puniru Is a Kawaii Slime is how quickly it turns a gimmick into a mood. latestnetflix.com's take is that yes, the premise is absurd on purpose: a boy’s homemade slime, Puniru, can shapeshift into a strikingly cute girl, and the series then treats that fact as both joke and daily inconvenience.But what lingers isn’t the novelty.
It’s the strange emotional logic underneath it — the way a bright, candy-colored comedy can still be about control, embarrassment, and the exhausting labor of being perceived.
That’s the first thing the show gets right: it doesn’t treat “kawaii” as a static aesthetic badge. It treats it as a force. Puniru’s cuteness isn’t just decoration; it’s disruptive energy.
Every scene seems built around the fact that she can’t help but overrun the room. I kept thinking about older transformations in anime — the ones that turn identity into spectacle, or identity into a joke, or both — and how this series is playing in that same sandbox while also gently poking at the whole enterprise. The punchline is often that Kotarou, the boy who made her, can’t keep up.
That’s funny, but it also feels recognizably human. Plenty of us have known the experience of creating something — a routine, a persona, a relationship — only to discover it has a life of its own.
The series comes across as a modern school-age fantasy with a sci-fi excuse stitched to a comedy engine, and that mix matters. It belongs to a very specific tradition of Japanese animation where the premise can be ridiculous without the emotions being disposable. I’m not entirely sure the show is always aiming for depth; sometimes it’s just trying to make a face, land a joke, and keep moving.
Fair enough. But even in its most featherweight moments, it’s attentive to how social life actually works for kids: who’s embarrassed, who’s performing, who’s trying to look cooler than they feel. That’s the real stage here.
Not the slime lab. Not the transformation. The social arena.
What I also appreciate is the show’s refusal to over-explain its own internal logic. A lesser series would spend too much time justifying Puniru’s existence, or turning the premise into lore. This one is more interested in rhythm: a gag, a reaction, a quick escalation, then a reset with just enough leftover awkwardness to keep the next scene alive.
Audience Opinions
Audience 7.2/10
"A lighthearted and charming comedy with a cute premise, though its simplicity may leave some wanting more depth."
The series wins over audiences with its adorable slime character and playful interactions, offering a fun, low-stakes escape. However, its repetitive gags and lack of narrative progression frustrate those hoping for more substance or character development beyond the initial novelty.
What viewers praise
- Adorable protagonist Puniru’s cute and expressive design makes her instantly endearing, drawing viewers in with her playful antics.
- Lighthearted humor The comedy is consistently upbeat and silly, providing a cheerful tone that appeals to fans of whimsical anime.
- Strong voice acting Yu Sasahara and Shuichiro Umeda deliver lively performances that enhance the characters’ charm and comedic timing.
- Short and digestible Episodes are brief and easy to watch, making it a great choice for casual viewing or a quick mood booster.
Common complaints
- Repetitive jokes The humor relies heavily on recurring gags, which can feel stale after a few episodes.
- Thin plot The series lacks a deeper narrative or character arcs, leaving little room for growth or surprises.
- Limited appeal Those seeking complex storytelling or emotional depth may find the show too simplistic for their tastes.
- Underdeveloped side characters Supporting cast members often feel one-dimensional, serving only as foils for Puniru’s antics.
Recommended for
Fans of cute monster girls Casual comedy anime lovers Those seeking lighthearted escapism Short-form anime enthusiasts Slime trope enjoyers
Buzz & Rumors
Public reportsBehind the Scenes of Puniru Is a Kawaii Slime: A Slime’s Rise to Anime Stardom
The anime world welcomed a new dose of cuteness in 2024 with Puniru Is a Kawaii Slime, a series that blends fantasy charm with the kind of chaotic energy only a shape-shifting slime could deliver. Based on the manga by Maeda-kun, the show follows Kotarou, a boy whose homemade slime, Puniru, defies expectations by transforming into a stunning girl—and then proceeds to turn his life upside down with her unpredictable antics. But how did this quirky premise leap from the pages of Weekly CoroCoro Comic to the screen? latestnetflix.com's view is that here’s what we know (and what’s still a mystery) about the making of this breakout series.
From Manga to Anime: A Speedy Adaptation
Puniru Is a Kawaii Slime began as a manga in March 2022, serialized online by Shogakukan in Weekly CoroCoro Comic 
. The jump to anime was swift: just two years after its debut, the series received its TV adaptation in 2024 . For a relatively new property, that’s a brisk turnaround—suggesting either strong publisher confidence or a calculated bet on the manga’s growing fanbase.
The anime’s production studio remains unconfirmed in the available evidence, but the speed of adaptation hints at a lean, efficient pipeline. Rumors (unverified) suggest the team prioritized faithfulness to Maeda-kun’s art style, which leans into exaggerated, expressive character designs—perfect for a slime that oscillates between adorable blob and bombshell human. If true, this would explain why Puniru’s transformations feel so fluid on screen, a key selling point for the series 
.
The Cast: Voices Behind the Chaos
The anime’s central duo, Kotarou and Puniru, are voiced by Shuichiro Umeda and Yu Sasahara, respectively . Umeda, a relative newcomer, brings a grounded energy to Kotarou, the long-suffering protagonist, while Sasahara—known for roles in The Rising of the Shield Hero and My Dress-Up Darling—lends Puniru a mix of innocence and mischief. Their chemistry is the backbone of the series, with Sasahara’s performance reportedly leaning into the slime’s duality: equal parts sweet and sly .
Supporting the leads is a sprawling cast of 94+ actors, per Bingebase . While the full list isn’t public, IMDb confirms Risa Shimizu (The Promised Neverland) and Jun’ya Enoki (Jujutsu Kaisen) among the ensemble . The sheer size of the cast suggests a world rich with side characters, though their roles remain largely unexplored in early episodes.
Streaming Wars: Crunchyroll, Netflix, and Global Reach
Puniru Is a Kawaii Slime didn’t just land on one platform—it became a battleground for streaming dominance. Crunchyroll and Netflix both secured rights to the series, with Crunchyroll listing it under its original title and Netflix opting for the slightly tweaked Puniru is a Kawaii Slime . Medialink also licensed the show for Asia-Pacific (excluding Australia and New Zealand), streaming it on Ani-One Asia’s YouTube channel .
The dual-platform release is a savvy move, maximizing visibility in a crowded market. Netflix’s involvement, in particular, signals confidence in the series’ appeal beyond traditional anime fans—perhaps banking on the "cute monster" trend popularized by shows like Monster Musume. Whether this strategy pays off remains to be seen, but early buzz suggests Puniru’s antics are resonating with audiences.
Unanswered Questions and Rumors
For all its charm, Puniru Is a Kawaii Slime leaves several behind-the-scenes details in the dark. Key unknowns include:
- Director and Studio: The creative team behind the anime is a mystery. No director, producer, or studio is named in the available evidence .
- Episode Count: The series is listed as ongoing on IMDb , but no official episode count or season length has been confirmed.
- Manga Sales: While the manga’s serialization in Weekly CoroCoro Comic suggests a built-in audience, sales figures or reader demographics aren’t public .
- Fan Reception: Early reactions are scarce. The series’ success hinges on whether Puniru’s humor and cuteness can sustain long-term interest.
Rumors (unconfirmed) suggest the anime may explore arcs not yet covered in the manga, given its rapid adaptation. If true, this could mean original content or expanded backstories for side characters—though nothing has been officially announced.
Why This Slime Stands Out
In a sea of isekai and battle anime, Puniru Is a Kawaii Slime carves its niche with a simple but effective hook: a slime that’s equal parts adorable and anarchic. The premise taps into a familiar fantasy trope (monster girls) while subverting it—Puniru isn’t just a companion; she’s a force of nature, dragging Kotarou into increasingly absurd situations.
The series’ strength lies in its tone, balancing slapstick humor with moments of genuine warmth. Sasahara’s voice work elevates Puniru from a gimmick to a character with depth, while Umeda’s Kotarou grounds the chaos. If the anime can maintain this balance, it might just outlast its "cute slime" novelty.
For now, fans are left to enjoy the ride—and wonder what other forms Puniru might take next.
Entertainment rumors and trivia aggregated from public reporting. Treat speculation as unverified unless a cited source confirms it.
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