Considering it's adapted from a manga I think it can get more episodes depending on the number of chapters released, Saiki Kusuou is a comedy anime with short episodes and it had 120 episodes in season 1, and then had a sequel, so it is possible.
Eh, I only published the review on MAL because why not, I mean I already wrote it 😆
RE: Hannin no Hanzawa-san Review