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Can you post a better pic of the Omote? From your only pic it is hard to see the condition .
In general a simple x-stroke should work, but a better pic will help determine the correct course of...

the transition from the soft iron to the core steel looks very even indeed, also kind of high.

@ OP what brand is that Kamisori?

You fix this like any other razor, make the spine even.
Try 45 degree heel forward strokes or rolling -x