 If you liked
Shingeki no Kyojin
|
 ...then you might like
Garo: Honoo no Kokuin
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In both of these animes there are unusual, scary creatures. In shingeki they are titans and in garo they are demons.
Both of them eat humans because of an unknown purpose.
Both of the main characters started their way as fighters because of revenge (their mothers died) and then it turned to be "I want to protect someone/something"