Rook calls Kaito and Raetsel together, telling them about a time he had a talk with Jin, who told him a cryptic message about puzzles being both 'chains' and 'mirrors', which he had also told Raetsel. He goes on to explain his research on Jin's year spent with Raetsel, showing that even though he fought against Fool's Puzzles, he also taught others the fun of puzzles. Wanting to prove her own case, Raetsel takes Kaito and Rook to a Fool's Puzzle that Jin wasn't able to solve, consisting of various elevators above a bottomless pit...