Hm...It is impossible to hide, conceal, or remove, then?

[If it's just a birthmark, then it's easily hidden, but....if it's magic bullshit, then he can understand the issue.]

Regardless, then merely use your success to argue for yourself, if they attempt to immediately press you into service after. At the very least, you should be able to get a few years to yourself.

...However. It may be best to eventually make peace with what your life has become - even as unfair as that may seem.