So, this is the timeline than?

OCT 20 - Promoted to E5
NOV 20 - Transfer to IRR
Sometime in 2021 - Reenlisted in the Active Component
AUG 21 - JAN 22 - Attended AIT
FEB 22 - Assigned to current unit

If so, then this will be your first NCOER and it will be a regular annual covering from FEB 22 through FEB 23.

You wouldn't have had enough time for an NCOER after being promoted so there's no "previous evaluation". You MIGHT have had the need for one if you actually had a previous NCOER (likely not though, but it COULD be interpreted that way).*

Your time in the IRR between NOV 20 and AUG 21 is non-rated, but considered an 'acceptable gap' by HRC (as explained previously).

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* Extended Annual - A mandatory code 10, “Extended Annual” report, will be prepared when any nonrated time periods have occurred since the “Thru” date of the previous OER or NCOER (for example, prior to the establishment of a new rating relationship between the rated Soldier and the rater). The “From” date of the period covered on the “Extended Annual” report will be the day after the “Thru” date of the last OER or NCOER.