This is the classic of classics. The Chinese and their webnovels did not invent the revenge plot. Vintage Japanese manga were on it decades ago. And they did an amazing job at it too.
This is a very compelling manga about a young woman who is desperately trying to take her life back into her hands and has all the odds stacked up against her. Who is going to believe a young woman whose appearance goes against our comprehension of what is aesthetically pleasing? This is an interesting take about our prejudice against people of certain shapes, certain complexions, etc.
Back in the days when shojo/josei manga were exciting and had heroines trying to achieve something that transcended high school romance.