If you liked
NHK ni Youkoso!
|
...then you might like
Aoi Bungaku Series
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Both are depressing, but Aoi Bungaku is a series of stories not one but the first story is exactly as NHK.
If you liked
Sword Art Online
|
...then you might like
Accel World
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It is similar because they are both virtual reality. And are about fighting Accel World isn't as good as SAO because the noumi arch.
If you liked
Mahou Shoujo Madoka★Magica
|
...then you might like
Mirai Nikki (TV)
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They are both very similar in gore and the plot is slightly different you will see.
If you liked
Strike Witches
|
...then you might like
So Ra No Wo To
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Same thing except flying. Both are military. So Ra No Wo To has some ecchi but not as strong as Strike witches though.
If you liked
K-On!
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...then you might like
So Ra No Wo To
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Some characters look the same and act the same -Rio looks like Mio and they act the same -Katana is similair to Yui There are others that are similair except this show is a little more serious about some things.
If you liked
Kaze no Stigma
|
...then you might like
Darker than Black: Kuro no Keiyakusha
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Kazuma and Hei both behave in the very same way. They are both calm and cool. When it comes to girls they freak out. Both anime's have supernatural powers.