Today was the 2nd day of operation. Orion the Beowolves left Oliran at 9:00 AM the target of operation Orion was to reach the ruin on the 3rd day. They still had more than a day to spare, but nothing ever goes according to plan completely. Two days ago, before they started Orion, some of the Beowolves originally asked Cain.
"This would be our first operation. Why call it Orion? We have four targets. Wouldn't it be better to use something with a motif of four instead?" (Abel)
"Hmm, a good one if we still plan to use the stars as a motif would be Pegasus; the Great Square of Pegasus has four stars that form a square. I think they were named Scheat, Alpheratz, Markab, and Algenib." (Claude)
"I'm surprised you even remember such information still why Orion captain? Better than to ask you straight than guess" (Adriel)
"It is so we don't forget." (Cain)
"Forget? Forget what?" (Jin)
