Some idiot online's feed

As a big fan of these series, it hurts to see people think that the translation is behind when it reality the anime isn't based off of the manga. There's a light novel and 2 manga adaptations. The anime follows this adaptation, however, since this hasn't gone far, now it relies on the actual light novel while using this artstyle and aspects of the other adaption. So no, this translation is not behind, and if it is, its usually by a chapter or two compared to the raws.