Unfortunately the second season does not replicate the greatness of the first season. It is all down to the writing, as everything else is more or less the same quality. The same voice actors, art, music, etc. What made the first season very enjoyable were the innovative plot elements. You followed a protagonist driven partly by revenge and dark emotions, in a fantasy world that seemed devoid of goodness, unlike most stereotypical fantasy worlds (very similar to the appeal of a much darker anime, Berserk). In season 1 you had a very satisfying revenge arc, a main character who builds his strength satisfyingly, satisfyingly annoying antagonists, and a fair share of gore for good measure.
In season 2 there is none of this. Everything is of the same quality except the plot. The plot follows a very boring quest to kill a benign enemy, and the main hero faces no adversity. Even the previous antagonists (the other three heroes) don't hamper the main character. It's all very uneventful and boring, but this is the problem with light novels whose authors write periodically without intending for a satisfying ending.
Let us hope that season 3 can bring back the satisfying dark themes of season 1.
I would only recommend watching this so you can be up to date for season 3. Otherwise if you aren't interested, don't waste your time.
