Story
The Aullaeu base was searched first, since they have long been at odds with the Shugo. Find clues about Kochi's abduction in the Aullaeu base.
After completion (spoilers)
"No, this is different from the one at his quarters, nyerk." The Aullaeu base was searched first, as they have long been at odds with the Shugo. You found human weapons resembling the one in Kochi's quarters. However, though similar, these weapons were not identical, so the culprit remains unidentified.