Yousuke Sakurada is Hiromu Sakurada and Rika Sakurada's father. He was the head researcher of one of the Energy Management Center's major operations, the Transport Research Center, which studied the science of teleportation as well as the technology of MegaZords. Thirteen years ago, while spending Christmas in the lab with his son, and wife, along with other scientists who brought their children along, he witnessed the Messiah virus infiltrate his systems at his research lab. Sakurada saw that the virus had been affecting every operational machine in sight. Sakurada decided to send the entire research facility, together with Messiah, and his Vaglass, to Hyper Space.