For me, Attack on Titan, Paranoia Agent, and Vinland Saga really blew my mind — especially from the psychological and seinen side of things. Each of them mixes philosophy, action, and emotion so well that you end up thinking about them long after watching.
Lately I’ve also been reading Berserk again, and it still hits differently every time. If anyone’s into deep psychological or fantasy anime like these, theanimeslayer has some great breakdowns and episode insights worth checking out.
What about you guys — any underrated series that made you rethink the whole genre?