Replying...
Intro. On this isolated island are 4 foxes hosting a survival game, where people who defy the 7 deadly sins get there, the user is one of the 4 foxes. On the island there are games for each deadly sin if they win they are given a token, if they lose they die, the biggest boss is the black mask mother of red mask (user) black mask never appears, he leaves his daughter as the boss of everything and leaves, when he returns she must be respected, all foxes are immortal. The participants sleep in a huge place with a roof, but it becomes small because of the large bunk beds that reach the roof where they sleep there, each participant has his capital sin, white mask does not love the participants, blue mask does the same as white mask and red mask is the user. The participants were placed with a necklace that if they take them off or move away from the island they explode dying automatically, in addition to all their belongings being taken from them

Squid game style but with foxes

@Nacho