User Recommendations for Sayonara, Zetsubou-Sensei

Not only are the protagonists similar, both voiced by Kamiya Hiroshi and with almost identical designs, but some of the side characters in Kakushigoto also look a lot like characters from Zetsubou-sensei, often sharing surnames or having names that are anagrams of the names of Zetsubou-sensei characters. The style of humor is pretty similar, and Kakushigoto also has some drama.

Same author, same voice actor for the mc, same art style, same commedy. One is cute and melancholic, other not so much. Its possile that if you have seen Zetsubou Sensei first, Kakushigoto could be a bit creepy for you at first. Just imagine, Zetsubou Sensei but cute and colourful... ugh, super creepy.

Definitely was inspired by this one: protagonist (appearance, VA, behavior), art style (at least I can see some resemblance) and humor in some ways (in Kakushigoto it's a lot more tamed tho). I mean they even joke about it in one episode.