Phi Brain: Puzzle of God - Season 3 Episode 18

Orpheus appears before Kaito and the others, showing each of them alternate versions of their past, including Kaito managing to save his parents and Freecell's mother never having the Orpheus Ring. He then shows a genuine look at Nonoha's past where, even though a fit of binge eating left Nonoha unable to solve puzzles anymore, she still felt joy in seeing Kaito solve puzzles. Orpheus then reveals he made the bracelets to determine worthy vessels for his power, tempting Kaito and Freecell with the offer of becoming Phi Brains so they can change the past, in exchange for Jin's safe return. However, Nonoha knocks some sense into them, reminding them that both the good and the bad things of the past are what made them who they are today, letting them turn down Orpheus' offer and return to reality. Meanwhile, Jin regains temporary use of his body due to Orpheus stressing too much of his power, telling Raetsel he intends to let Orpheus die with him. As Gammon and Elena head towards Amigne themselves, Kaito and the others arrive at Orpheus' puzzle.