After my younger junior sister gave up on treatment

In the Mirror of Fate, Yan Chun sees herself as someone who starts off loved by everyone, but ends up abandoned and betrayed, her lover's heart turning cold. She embodies the legend of the cursed lone star, fated not to have a good end, not even if she were to keep a dog. Yan Chun refuses to accept this. However hard she tries to change, everything ends up worse because of her efforts, leaving her with nothing but a shred of herself. Eventually, Yan Chun chooses to give up treatment. To hell with this damned circular fate! Even in death, she'll go on her own terms!