The Lure of Minotaur (ミノタウロスの誘惑 Minotaurosu no Yūwaku) is the twelth episode of Phi Brain: Kami no Puzzle Season Two and the thirty-seventh episode of the anime series overall.
As Rook and Bishop investigate the Orpheus Order elsewhere, Souji expresses his desire to quit both the student council and the puzzle club. Meanwhile, Souji is contacted by Minotaur, who is revealed to be working for the Orpheus Order and tries to tempt him with a replica ring, though he still refuses. The next day, Naoki Takeda decides to run for student council president, prompting Tamaki to run against him. Later that day, Souji receives an invitation from Minotaur to come to the place where Kaito found the Orpheus Bangle, challenging him to a Fool's Puzzle which would destroy the academy should be lose, presenting him with a replica ring so he can solve it. As Souji ponders his decision, it is revealed that he was in fact the Minotaur who challenged Kaito in the past since Kaito's bangle rejected him prior to choosing Kaito. As the others get word of this, Cubic reveals what Souji told him about willingly becoming a host for the replica ring. As they arrive on the scene, they find that Souji had solved the puzzle using the replica ring and challenges Kaito.