Man, fuck learning Korean to buy/read some generic 5/10 'abused daughter of some powerful figure who was also probably abused' webtoon which Korea seems to love pumping out.
Sounds like the author is ill-informed regardless,
"If they had my consent to translate the work, I would have thought the same way as you do, however, permission was neither asked nor given. Translation of the work was done without my notice and it was even sold at a certain price."