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Ok this is a weird manga and i read it id say....5,6,7 years ago. But this guy goes to an island with a group of people and everyone but him and one girl gets murdered. She i think was from the island to begin with she may or may not know that though. But outsider are not aloud. But there a bunch of fu**ed up stuff that happens. Its a black and with manga if that helps. But is like a secret village i didnt finish it but i have tried to find it agin and i dont know what it is. Ohh they people are reincarnated. I remember that. But it was really weird messed up manga (not as bad as some but messed up not the less)
Thank you for any help you can give me.