This is one of the first series Crunchyroll dubbed into Latin American Spanish (and other languages as well) as a part of his plan of dubbing many of their catalog into other languages.
Trivia Tropes
Acclaimed Flop: Though the anime adaptation was relatively popular between the audience during the season where it aired, the Blu-ray/DVD sales underperformed greatly, to the point it barely managed to sell 460 copies.
Ditto for the English dub which featured mostly new rising stars and some old veteran pros.
Franchise Killer: The anime's financial failure ended up pretty much killing the series as a whole. About the time the anime ended, the light novels went on hold, and its creator has not worked on anything officially documented since.
Series Hiatus: There hasn't been a new light novel volume since the sixth, which was released on July 24, 2015.