Seven, otherwise known as 707 or Luciel, is a hacker from Mystic Messenger. Seven displays a happy-go-lucky, outgoing, and very bizarre personality. He plays pranks, cracks jokes, and loves to poke playful fun at others (including himself), presenting as a typical jokester. Behind his humorous front, Seven is actually quite depressed and serious, refusing to believe that he deserves anything good in this world. He tends to push people away for fear that his dangerous profession will hurt them.