The battle with POG is over, but Kaito's determination to rid the world of lethal puzzles remains, stronger than ever. Alongside Ana, Cubik, Gammon and Nonoha, Kaito continues tackling each Puzzle of Fools he can find, taking them down with ease. But soon, the gang discovers that a new group known as the Orpheus Order is in town, and they're willing to do whatever it takes – even manipulating others around them – to achieve their ultimate, sinister goal: to learn more about the Orpheus amulet and force all of humanity to unlock their true potential, no matter the deadly cost. With new treacherous puzzles to solve and their friends' lives at stake, Kaito and the group must use their intellects once more to take down the Orpheus Order.
Some years into the future, a strange, unexplainable natural disaster has broken off a piece of the Japanese mainland. Known as the Lost Ground, it is now inhabited by people with Alters -- machine-like extensions of their own will. In order to keep the peace on the Lost Ground, the HOLY organization uses its own Alter capabilists to police the region. In the midst of the chaos is a young man named Kazuma, whose life will soon change forever as he discovers his hidden abilities, and how to wield them.
Both shows have characters that love to hate each other and plenty of interesting battles occur because of this. Scryed is a little more action adventure based where Phi Brain goes the puzzle solving school life route but either way I'm sure fans of one would enjoy the other.
The mystery of "The Blade Children" is a secret which has remained well-hidden, and has cost some their lives. After Narumi Ayumu's brother disappears in a search for the answer, Narumi is forced to unravel this mystery for himself. Join him in his investigation which will lead him to the secrets of the Blade Children, and to tests of skill which may prove to be fatal.
Spiral doesn't really have the comedic elements that Phi Brain has, but it's another title about dangerouz, deadly puzzles that must be solved by special 'children'.