>>It seems pretty clear that the A-plot of Arpeggio did
>>not occur in UF; in particular, the "you are the first person
>>of Earth descent to make contact with any ship of the Fog" line rules
>>out the existence of Gunzō Chihaya during the original Fog War...
>
>...as far as Yamato and rest of the Midway detachment know.

Iona was right there! And she never said she'd lost her memory, apart from the Admiralty Code.

>>and implies that Iona did not defect.
>
>And yet, if she didn't defect, why was she found alone? No
>black-marketeer would have passed up the chance to put multiple Fleet
>of Fog ships in the inventory.

"Extended deep-cover assignment" á la Léonne?