Alps no Roujin Heidi no Ojii-san
English title: Heidi's Elderly Grandfather of the Alps
Japanese title: アルプスの老人ハイジのおじいさん
Alternative titles: Old Man of the Alps Heidi's Grandfather
Type: ONA
Source: Book
Episodes: 12
Status: Finished Airing
Aired: Dec 18, 2024 to Mar 12, 2025
Duration: 1 min per ep
Rating: G - All Ages
Studios: DLE
Producers: KDDI
Genres: Comedy
Themes: Gag Humor, Parody

Alm-Onji is the protagonist as he and Heidi act like a comedy duo and talk in a Kansai dialect.

(Source: ANN)