Tsumurin: Korokoro Yamu no Daibouken
English name: Tsumurin: Adventure of the Korokoro Mountain
Genres: Adventure
Type: ONA, Episodes: 2
Aired: Jul 16, 2020 to Sep 1, 2020
Source: Original
Rating: G - All Ages
Synopsis:
This is an animation in which the character Tsumurin rolls around. Let's Rolling Ball!

(Source: YouTube)