The official Twitter account for VAP's Ponkotsu Quest anime shorts revealed on Monday that the anime will have a sixth season.
The anime debuted online in 2013. Keisuke Matsumoto (Seizei Gambare Mahō Shōjo Kurumi, Super Short Comics) directs the anime, and is credited for planning along with Taketo Shinkai (GraP & RodeO, Ahare! Meisaku-kun). The fifth season debuted in April 2018.
Ponkotsu Quest previously produced a collaborative short anime with the live-action Gatchaman film, and also produced a collaborative anime with Makoto Yukimura's Vinland Saga manga in 2015.
Source: Ponkotsu Quest Twitter account, Comic Natalie