The builder doesn't need me, the buyer doesn't use me, the user doesn't want me.
[He pauses, giving Riku a moment to remember that.]
It's your first clue. We're playing a little game now. You follow the clues, starting at 8:00 tonight, and they'll lead you to me. If you find me, we can play another game I have planned. If you win, you get me, if you lose, I get your soul.