Read Glass Wall Manga:
Liliana Fence, is a kind-hearted and innocent daughter of an aristocrat. Being loved and spoiled, she never knew anything about hardships. Until one day she was charmed by Edward Carter, her new music teacher. When she thought her spring had finally arrived, turned out he actually despised her so much for being an aristocrat and an "innocent" one.
Since then, her world turned upside down. Her father suddenl more.. y committed suicide, leaving nothing but a massive debt. Forcefully living as a commoner, now Lily decided to never trust anyone anymore. But what would she do when Edward came back to her life while holding the very same feelings for her as she was for him back then?