A small note now laid written in an available spot near the list of codenames, its message clear for those to see it.

"Greetings. While I do not seem to have any multiples of myself besides one that is easy to differentiate from, I figured I should take a precautionary measure in case of future situations. I am Yusuke, if that name is familiar to any of you. I have taken the codename 'Fox' as it appears to be available, and I look forward to meeting and associating with you, should we cross paths."