Based on the complete axiomatic framework of Pythagorean Frustum Unified System II (V11.4), this paper provides a unified, structural solution to six ultimate physical problems: gravity, quantum entanglement, dark energy, arrow of time, origin of mass, and dark matter. All phenomena are explained as manifestations of β₁ global coupling, discrete closed structure, and five-element cyclic closure. No additional hypotheses or free parameters are introduced.