Following the scant memory of the Holy Sun Church's Sanctuary architecture, Leon analyzed the route out of this massive temple as much as possible.
The last place he opened his eyes was the Oran Palace plunged into a massive crisis during the dead of night. Now, it was broad daylight, in what seemed to be a Saint Sun Temple within Seryan. This stark difference in environment made both of their minds flood like a spring.
Considering the exploding scene at the end of his memory, Leon used the imagination from fantasy novels he'd read in past lives to formulate some guesses.
Could it be that the ancient ritual under the Holy Sword Courtyard was actually a Magic Teleportation Gate?
Had he accidentally triggered its original function last night, being 'blasted' from the Orland Kingdom to the Seryan Kingdom by that magic?