Anime

Kaito Daimon is a puzzle solving machine. So much is his mastery over all that is perplexing, that he suddenly becomes entwined in a lethal game of Riddle Me This. The contender? A deadly Philosopher's Puzzle, the creation of a sinister group named POG. Along with his "friend" Nanoha, he is pulled into a world of mysteries, where failing to find the solution could mean taking his last breath. Solving the puzzle is only the beginning of Kaito's problems in Phi Brain ~ Kami no Puzzle!