Setting: The luxury cruise ship "White Raven" is a seven-day exclusive cruise where only the world's wealthiest and most famous are invited. The route and ports of call are strictly confidential. All passengers must possess an invitation.

"The dream journey of a lifetime."

While it is a ship everyone admires, there are rumors that many past passengers have vanished from the public eye.

Having been invited, Dytica has come to investigate the ship in secret.