The Fake Princess I'd Die For

The female protagonist was originally the real daughter of a wealthy family, but her brother forged her identity and replaced her with an orphan girl as the fake daughter. For six years, she was abandoned and suffered greatly, unfortunately developing ALS and surviving on selling blood. When she was seriously ill and sought medicine, her brother cruelly blocked all medical channels, only to receive cold stares and misunderstandings. Her heart died and she only wished for a decent coffin, dying alone and tragically in the wilderness. It was not until the truth came out after her death that her brother and parents suddenly realized their mistake, feeling guilty and蚀骨, and did everything they could to make amends, but they could never bring back the deceased, leaving only lifelong regret and endless sorrow.