After Transmigrating into a Cannon-Fodder Supporting Character, I Became Invincible in Immortal Cultivation

After transmigrating into a cannon-fodder heroine, I became invincible through cultivation: Reborn as an ill-fated side character, she abandons the original plot to focus on cultivation. After stumbling upon a rare spiritual root, she surpasses the original hero and heroine. With no foolish obsession with romance, she throws herself into building her career. The thrills come fast, with no dragging things out.