Shuffle Island.

Fourteen men and women searching for love gather on two unconnected islands — men stay on the Blue island while women reside on the Pink one. Once a day, when the 'shuffle time' comes, members of each island can select one from the other island to be exchanged. That's the only way a person can move to the other island. But it also means that some are at risk of not seeing the one they fell in love with again.