 If you liked
Campione! Matsurowanu Kamigami to Kamigoroshi no Maou
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 ...then you might like
Noragami
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Protagonists in the show are living a normal teenage life when suddenly they are involved with supernatural stuff and magic.
The shows are involved in gods and religions, the female protagonist is both shows wasn't very fond of the male leads in the first place, through adventures they slowly develop feelings towards the male lead.
( In Campione romance is part of the plot while Noragami it is just a hint of romance. )