Sukima no Kuni no Polta  

A Country Between the World, スキマの国のポルタ

The narrative revolves around "Sukima", a serene nation situated between two realms. In this tale, Porta, our protagonist, embarks on delivering parcels to residents throughout town while accompanied by his faithful steed, Robaroba. As the story unfolds, it remains uncertain whether Porta will successfully deliver crucial packages without encountering any perils. Notable characters such as Zouzou, Kabakaba, and others are anticipated to make an appearance in this original animation production by Ryoji Arai, who was bestowed with the Astrid Lindgren Award.