 If you liked
Higurashi no Naku Koro ni: Onikakushi-hen
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 ...then you might like
Hotarubi no Tomoru Koro ni
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Both series are set in the semi-supernatural world of a fragment not too far from the other's world. A group of people are forced to fight through a perilous situation.
The intro for Hotarubi is a short story called The First and Last Gift, which is separate from the manga.