Google Sheets, 15 bytes

This gets the 97th character in the ASCII table:

=char(row(A97))

The A97 in the formula is not a literal string nor the number 97 but a cell reference. If the question is interpreted to mean that such cell reference is not allowed either, put this sorter version in cell A97 instead (12 bytes):

=char(row())

To do the same with math (48 bytes):

=let(a,len(false),b,a/a,c,b+b+b,char(a^c-a*a-c))

Alternatively, this gets the 65th character in the ASCII table ("A") and converts it to lowercase (39 bytes):

=lower(mid(false,pi()-n(true),n(true)))

The output of these four formulas is currently the same, but that may change in the event ITU-T Recommendation T.50 IRA gets updated or replaced, and the implementation of Google Sheets char() function follows through.

Thanks to General Grievance.

How dare you fuck the brain, 38 bytes

II+=+=+=+=+=+^II=+=+=+^II=+=+=+v+v+IPH

Try it online!