 If you liked
Monogatari Series: Second Season
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 ...then you might like
Seishun Buta Yarou wa Bunny Girl Senpai no Yume wo Minai
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I can't recommend both of these series enough. Our main characters go around solving the various anomalies in their towns. Koyomi, Sakuta, and Kaiki are all inspiring human beings.
And no joke, the tropes of Bunny Girl Senpai as the quantum mechanics and Monogatari as the philosophy courses of anime are deadly accurate. Your world view will be shifted by these shows, and for anyone looking to stimulate their brain, both are fantastic watches.