In the early 2010s, the Brazilian Cartoon Network began to invest in the production of original animated series to comply with the ANCINE agreement for more Brazilian productions on TV channels. One of the first series was this one here.
Historietas Assombradas had actually started out as a (very average) children's horror short film made in the early 2000s, after many years in 2010 came a pilot episode (quite different from the final result of the series) that failed, but still so the creators pressured to want to continue with the series.
This show basically tries to be a rip-off for Grim Adventures of Billy & Mandy, but without the same charm and entertainment level of Billy & Mandy. Historietas characters are REALLY unlikeable (except for Marilu). Pepe is by far the worst character in the show, he is very immature, troublesome, selfish and is the main responsible for causing problems (at the opening of the show he just appears laughing at other people's misfortunes). And Pepe's grandmother is no better than him either, I hated her since the short film made in the early 2000s, she is a very bitter and grumpy grandmother who doesn't respect her grandchildren.