She was an orphan and socially humiliated.
She thought that by changing her identity, she could start over.
But what the heck is this ensuing engagement, the cold looks from the family, the frame-ups one after another, and the strange first love.
It was so scary in ancient times. Girl, let's change it back. I want to go home.
It's too late, it's too late. Since you've made your decision, there's no chance to change it.
We are both fallen people at the end of the world, so why should we have known each other before.