 If you liked
Terra e... (TV)
|
 ...then you might like
Inuyashiki
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Both cover the idea of an end to Earth. There isn't an obvious antagonist and protagonist and the MC's are set against each other because of how different their nature is (in Inuyashiki it's how they enjoy killing and saving people and in Terra e... it's' how they were born with powers or not). There's themes about what is right and wrong and a lot of death.