Great anime! Reminds me of playing RIFT!
Story: The story is just great. All the scenery, the plot, the events, the drama; everything is superb. The start was a bit confusing, and I didn't really knew what the anime had and I also felt that I am maybe watching the second season, because it started in a weird way. But, then I started to get interest as the story proceeded and it was just great!
Art: All the scenery, the towns, the character designs were good and the environment was well designed.
Sound: I liked the background music, the opening and ending theme songs were also great esp. the ending song.
Character: I liked all the characters, esp, the ninja girl, she is so cute and funny. The occasional devil like appearance of main characters are also funny. The main hero Shiroe is great, I liked his personality: cool, calm and smart (plus he wears glasses).
Enjoyment: I really enjoyed the anime and will definitely see the next season. This season had lots of suspense and I hope that suspense will be opened in the next season and I can bet that it will be thrilling.
So overall, the anime was great!