Forest: Werewolf on a Deserted Island

A cruise ship that was supposed to head for Sanya runs aground on an unknown island. The only 19 survivors all suffer amnesia and cannot contact the outside world, so they have no choice but to use the island's resources to survive. After seven days of living together in peace, people gradually begin to die. As they face murders straight out of a classic locked-room mystery and a shipwreck full of unanswered questions, the survivors begin their investigation. In this deserted-island game of Werewolf, just how many of them will make it out alive?