| There is only one target for all of them: stay alive! They were told only 1 people can leave this island alive | |
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| Some of them were kidnapped by FF, some of them were attracted by FF's bounty game FF treats everybody as a tester, hypnotize them, brainwash them and genetically modified them | A group of people from different background and classes were brought to an isolated island by a mysterious organization called 'FF' |
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