 If you liked
Shinsekai yori
|
 ...then you might like
Devilman: Crybaby
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If you like to see a show that makes you question your humanity and turn you into a crybaby, then these shows are for you.
Both series have hard hitting drama and a substantiated moral/existential subtext. In these respects both series are aimed more towards adults. Shinsekai Yori isn't quite as raw as Devilman crybaby (e.g. in terms of sexual elements) and focuses more on world building rather than action in a slower paced story but I feel there are enough similarities to warrant a recommendation.