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Kaito, a puzzle-loving high school freshman, is selected as a candidate for "Phi Brain". He and his friend Nonoha find an "unsolvable puzzle" near their school. The puzzle turns out to be a life-threatening "philosopher's puzzle" created by the mysterious group POG. After successfully solving the puzzle, Kaito is designated as a Solver and is joined by other Solvers as they battle POG all over the world by solving the "philosopher's puzzles". Edit

Kaito, a puzzle-loving high school freshman, is selected as a candidate for "Phi Brain". He and his friend Nonoha find an "unsolvable puzzle" near their school. The puzzle turns out to be a life-threatening... Read More

Add a descriptionKaito, a puzzle-loving high school freshman, is selected as a candidate for "Phi Brain". He and his friend Nonoha find an "unsolvable puzzle" near their school. The puzzle turns out to be a life-threatening "philosopher's puzzle" created by the mysterious group POG. After successfully solving the puzzle, Kaito is designated as a Solver and is joined by other Solvers as they battle POG all over the world by solving the "philosopher's puzzles".Cancel