Puniru is a Kawaii Slime

Kotaro Kawaii, a second-year middle schooler, made a slime as a child that came to life. He named it Puniru, and they’ve been inseparable ever since.

Mami Kirara, the school darling, is a saint with a heart of gold. In order to catch her eye, Kotaro asks Puniru to try a special transformation?

Kotaro visits a collab cafe for his favorite mascot character. He’s ready to indulge in the joy of being surrounded by Kyuthi-chan...

Puniru meets her rival! Kotaro’s classmate Alice Okanega is the ultra-wealthy heiress of Kyuthi Land Company, and she vies with Puniru.

It’s sports festival season, and Kirara is exhausted from all the prep work (plus not getting to spend any time with children).

Alice is upset that everyone is now friends with the “knockoff” Runrune. Puniru tries to no avail to get Alice and Runrune to make up.

Summer's all about the beach! Kotaro and his friends are ready to swim, but the real stars of the show are missing...

Fighting over Kotaro (as future labor), Puniru and Alice compete over their school festival exhibits.

Kotaro makes up his mind to become a cool enough man for Kirara. After trying all sorts of things, Kotaro decides on a band!

Christmas is finally here, but Kotaro has no plans at all. In fear of being stuck with Puniru, he hurriedly plans a house party.

Everyone who wants to spend Christmas with her, and Puniru announces that she'll go with the person who brings her the cutest Christmas cake.

After Kotaro wins a raffle, the gang sets off for a ski vacation. Instead, they unwittingly end up at Alice's Runrune Resort!