Lets make it simple.. this anime is unique.
The story give you a feel of Slice of Life if you were live in a game/fantasy world.
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First of all, this anime will only suits for people who looking for a Slow story line of slice of life with hints of Romance not for people who looking for a Super power main chara who will save the world. Because this anime tell you about "Teamwork" and its problem.
This anime sure has a great action scene, but for me the best part is the Slice of life, It draw you into the story. It won't need a lot of tissue, it won't give you any Full-of-tears scene but you'll receive Mindset of the main character.
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If you need an anime that will keep you watch the next, next, and next episode. You need to give a try to Hai to Gensou no Grimgard.
~> Action / 8
~> Slice of Life / 9
~> Drama / 7
~> Romance / 8
~> Fantasy /9
It's all.. ^^ my first review and hope you understand with a simple + to-the-point review style...