Kotarou's life is turned upside down when he creates a unique slime that can transform into a beautiful female form, bringing excitement to his daily routine.
Kotaro's ordinary life is disrupted when his childhood invention, Puniru, surprisingly evolves into a playful and troublesome girl.
Aired: Oct 6, 2024Puniru's sudden appearance at Kotaro's school ignites a heated debate, but th...
Aired: Oct 13, 2024Kotaro's attempt to win Kirara-senpai's heart inadvertently awakens her mater...
Aired: Oct 20, 2024Kotaro's strong bond with his childhood toy, Kyuthi-chan, sparks a rivalry wi...
Aired: Oct 27, 2024A cuteness showdown erupts as Alice, the president's granddaughter, pits her ...
5. GO! GO! Fabulous Cheer Routine!
Aired: Nov 3, 2024A desperate Hodai dons a Runrune costume in a last-ditch attempt to win Alice...
6. The Runrune-tastic Grand Prix, Now with Puniru!
Aired: Nov 10, 2024Puniru's desperate attempts to repair her fractured bond with Runrune are sho...
Aired: Nov 17, 2024The gang enjoys a fun-filled day at the beach, while Puniru and Kirara-senpai...
8. Gather 'Round for the School Festival!
Aired: Nov 24, 2024Tension builds at the school festival as Puniru and Alice engage in a fierce ...
Aired: Dec 1, 2024Kotaro's attempt to prove his coolness by forming a rock band with dragons ta...
Aired: Dec 8, 2024Kotaro, who was once bullied for his fondness of cute things as a child, has ...
11. Scoop Up a Spoonful of Christmas
Aired: Dec 15, 2024Puniru's holiday cheer turns into a confusing mess when her Christmas wishes ...
12. A Lovely, Puniful Destination
Aired: Dec 22, 2024Kotaro embarks on an exhilarating adventure to the Runrune Resort, courtesy o...
Aired: Jul 6, 2025Kotaro receives a mysterious package while searching for his missing friend P...
14. Going on a Journey with My Childhood Friend Slime in Another World. And Valentine's, Too!
Aired: Jul 13, 2025Kotaro is suddenly transported to a fantastical realm where medieval-style ba...
Aired: Jul 20, 2025Puniru and Kotaro embark on a mission to repair Runru, but their solution com...
16. A Being More Perfect than a Toy
Aired: Jul 27, 2025A science lab accident leads to the unveiling of Dr. Mado's newest creation: ...
17. Puniru Powers Up?! See It for Yourself!
Aired: Aug 3, 2025Kotaro's ambitious summer plans may be thwarted by his own self-destructive t...
Aired: Aug 10, 2025Gelee becomes the object of fascination among the school's boys, including Ko...
19. A Midsummer's Runrune Resort
Aired: Aug 17, 2025Kotaro's stay at Runrune Resort is filled with unease as he can't shake off t...
Aired: Aug 24, 2025Kotaro's class welcomes a new student, Gelee, who's not thrilled about joinin...
21. Art Is All About "Kawaii"!
Aired: Aug 31, 2025Kotaro is set to face off against Nanpa in an artistic showdown, orchestrated...
22. Friendly Enough to Always Argue
Aired: Sep 7, 2025Kotaro's tumultuous tantrum sends Puniru fleeing to Mami's doorstep, where th...
Aired: Sep 14, 2025A casual study session with friends turns disastrous when Kotaro's thoughtles...
24. That's What the World Calls Love
Aired: Sep 21, 2025Kotaro's reaction to Puniru's transformation into a perfect human girl raises...
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