📝 Highlights & Appeal Light spoilers
01① Slime girl Puniru can transform into anything
Puniru's ability to shape-shift into an adult, a gyaru, a kid, or even a prince is the heart of the show's charm.
02② New character Jure debuts
Jure, an artificial slime lifeform (Gelloid) invented by Dr. Mato, is introduced starting in Season 2.
03③ Jure searches for someone to love
Craving humanity, Jure wants a child of her own — and sets off in search of someone to fall in love with along the way.
04④ OP theme 'Brun-Brun' sung by Puniru herself
Puniru (voiced by Yu Shinohara) sings the colorful, upbeat OP theme that opens every Season 2 episode.
05⑤ ED themes are covers of hit songs
Puniru delivers cute covers of hit songs like Mrs. GREEN APPLE's 'Ao to Natsu' and Omoinotake's 'Okuoku Kounen.'
06⑥ Robot hobby Runrun gets a big episode
The classroom's popular robot hobby, Runrun, gains self-awareness after a malfunction and gets swept into an unexpected commotion.
07⑦ Animation by TOHO animation STUDIO
TOHO animation STUDIO returns to animate Puniru's endlessly expressive transformation gags.
08⑧ The manga won the 70th Shogakukan Manga Award
The source manga won the 70th Shogakukan Manga Award in January 2025, part of its explosive rise in popularity.
💡 Key Points & Predictions Some spoilers
Season 2 concluded on September 21, 2025. With the addition of Jure as a new slime companion, there's plenty of room for the story to keep expanding.
🧾 Story So Far Contains spoilers
One day, the slime that elementary schooler Kotaro made for a summer project transforms into the gorgeous girl Puniru, who uses her shape-shifting slime body to become an adult, a gyaru, or even a prince — turning Kotaro and his classmates' daily lives upside down. Season 2 introduces Jure, an artificial slime lifeform created by Dr. Mato who longs for humanity and searches for someone to love, alongside a subplot where the classroom robot hobby Runrun gains self-awareness.
✅ Recommended Viewing Points
Recommended for anyone who wants rapid-fire gags paired with a constantly shifting parade of cute designs — a show that's fun for kids and adults alike.
👀 Trivia & Fun Facts
💫 Unresolved Foreshadowing Contains spoilers
Whether Jure can truly gain a sense of humanity, and what kind of relationship develops between Puniru and Jure as two slime beings, are the threads to watch going forward.