Read manga: Mo, Don’T Run!

manga
Summary:

She had gone from the Princess to Cinderella in a single night. She had no choice but to step on the arduous journey to seek help from her "fiancé". How could she have imagine that not only would she be rejected for help, she didn't even meet him. What's more, she accidently met her fiancé's uncle and fell into a forbidden love all of a sudden?!