 If you liked
Shiki
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 ...then you might like
Corpse Party: Tortured Souls - Bougyakusareta Tamashii no Jukyou
|
If you're a fan of gore, you should definetely watch these two anime.
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Recommended by SirBlackCat
In both shows, the intial cast is essentially 'haunted' by a spiritual entity, which torments the group (More killing in Shiki as there is a larger cast). Eventually, the group realizes what is causing the disturbance, and bands together to put an end to the troubles
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Recommended by Short_Circut