After the test ended and they were brought back, the examinee remained on her mind.
"Nathan"
From how he acted and did things, two things were clear: He had a goal and he knew the Island.
The Headmaster herself has prepared everything for this exam. The only other person who knew about this was the leader of Aegis, as his permission was required to use Byzander Island.
Susan is a top-level priority along with Irregulars and Goliath Unit in Aegis. But even she didn't know what the exam was going to be.
Yet that examinee acted as if he had a clear goal since the beginning. The way he navigated on the island and used the terrain to his advantage showed that he knew about the Island from before.
'He knew about the content exam and he knew something that is hidden on Byzander Island.'
Only a proper organization can have this much information. This greatly excited her. Why?