Bride of Special Assignment, or Selection Not by the Rules

I work as a hired bride. The groom's relatives generously pay me for helping deserving girls and protecting them from the machinations of unscrupulous competitors. A unique gift guards me from exposure, and things are going wonderfully. But one day,... I receive an invitation to the palace. A selection of brides for the Lord of the Winged has been announced. For a good reward, I agree, just don't threaten me with a fine... No, I'm not afraid of falling in love with an overconfident wizard! I'm afraid that I won't hold back and will take revenge for all the harm he has done to the metamorphs!