Help

I am searching for a Shoujo, a webtoon, there was this girl that had a sort of stain in her left eye, it was fake in order to make her ugly (of course she didn't seem ugly lol) btw she ends up as the tutor of 2 kids, and then she works at the father's kids mansion. He is clearly interested in her, but there is a mistery from the girl's past, she had a boy she loved but I dunno he can't recognise her bc he thinks she is dead and bc of her "ugly" look.