We show that the 750 GeV diphoton excess can be explained by introducing vector-like quarks and hidden fermions charged under a hidden U(1) gauge symmetry. which has a relatively large coupling constant as well as a significant kinetic mixing with U(1)Y. With the large kinetic mixing. the standard model gauge couplings unify around 1017 GeV. https://www.roneverhart.com/Western-Digital-Ultrastar-DC-HC550-WUH721816ALE6L0-0F38460-16TB-7-2K-RPM-SATA-6Gb-s-512e-ISE-3-5in-Hard-Drive/