The atmosphere at Genius Tower has become...strange. With Kaito contemplating the fate of both Rook and POG, Nonoha's at her wit's end trying to cheer him up. A summons from the principal to Gammon and Kaito, however, quickly brings him back to Earth.
With the Orpheus bangle still tormenting Kaito and keeping him from solving puzzles, Cubic takes a stab at researching the bangle to find an answer. The temptation is too much for Kaito, and he attempts to figure out one more puzzle even if it endangers his life.