I love this, it writing is well done (and FUNNY) and he just rolls with everything that's happened (for the most part!). Waiting to see what the future holds for our hero and these very weird companions! (seriously, the way the three are presented are hilarious, and Darkness is the most bizarre but Aqua and Megumin aren't far behind!)
I also appreciate that knowledge of the source material isn't needed to enjoy the game. It would probably help, but I don't know anything about where this is from, and still love it immensely!