As Raetsel transfers into Root Academy, Gammon spots Jin behaving rather oddly, uncertain whether or not to believe either Kaito or Ratesel. Later, a Master Brain posing as Jin appears before Kaito, challenging him to a Fool's Puzzle in which he much navigate a sliding puzzle maze within a time limit or else fall to his death. As Kaito comes close to solving it, the fake Jin blows out one of the rooms, preventing him from reaching the exit, as well as tilting the maze. However, Kaito manages to take advantage of risky nature and reach the maze's goal in time.
Como las transferencias Raetsel en la raíz de la Academia, Gammon ve Jin se comporta de manera bastante extraña, sin saber si es o no creer ya sea Kaito o Ratesel. Más tarde, un maestro posando cerebro como Jin aparece antes de Kaito, retándolo a Puzzle es un tonto en el que navegar mucho un laberinto de rompecabezas deslizante dentro de un límite de tiempo o caída más para su muerte.
