 If you liked
Seikimatsu Occult Gakuin
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 ...then you might like
Yondemasu yo, Azazel-san. (TV)
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The both are about occult. Since there is a few animes about occult science, demon/creature summoning and etc., it's a significant similiarity. Moreover, the sense of humour in "Yondemasuyo Azazel-san" and adventures & mysteries in "Seikimatsu Occult Gakuin" are the bonus features.