Claudius… an active staff of the Ak'ashi Guild.
He was a non-combat Staff, having some influence in the Academy especially. He was placed in charge of the Preliminary Round of the Combat Exams and also made to host the first three days of the Recruitment Event that focused on the Combat section.
'We have some information on him, especially his history in the guild. He is more of a scholar than a fighter, and while he has a somewhat twisted ideal when it comes to competition, making it so that every subject he is in charge of in the Academy is difficult for the students, he was relatively harmless to our plan.' The lady in white thought to herself.
On the promised day, when the Mercenary Crew was scheduled to strike, the plan was to silently eliminate him and make up an excuse for his absence. Since the Mercenary Crew had an 'Masquerade' Armament which made deception relatively easy, they were able to get away with the swap and had him take a leave.