Reborn as the Immortal-Cultivating Male Lead's Younger Sister

As the sister of the male lead, a child of fortune, she should have had a smooth path to immortality. Instead, she chose to oppose the heroine and became what people call a cannon-fodder character, a stepping stone in the leads' growth. Even though her older brother, the male lead, never held her responsible, she still died in a secret realm... When she opens her eyes again, she decides to stay true to herself, seize her own opportunities, and live life on her own terms as she strives to ascend to immortality! Unfortunately, the Heavenly Dao is selfish and obsessive. Watch as she overthrows it and builds anew. Content warning: The heroine's personality may not be to everyone's liking. (Updates are slow. If you don't want to wait, go straight to Chapter 85, which is the ending.)