Episodes: 25Status: Completed
Alternate Titles: Phi Brain: Kami no Puzzle - Orpheus Order-hen,Phi Brain: Puzzle of God 2,Phi Brain: Kami no Puzzle Dai 2 Series, Phi Φ Brain: Kami no Puzzle Second Season, Phi Brain: Kami no Puzzle 2nd Season,ファイ・ブレイン ～神のパズル オルペウス・オーダー編
The puzzles get tougher and even more deadly as Kaito Daimon continues his battle against the power hungry Givers of the POG. And with one team member already switching sides, will Kaito have what it takes to keep solving the deadly puzzle traps put before him and reach the fabled Puzzle of God? More importantly, will he be able to solve the puzzles AND maintain his sanity?