Ling Su, a military doctor in her previous life, died unexpectedly and was reborn as Ling Suyu, the illegitimate daughter of the Ling family. Born with a special spiritual root, she was regarded as a good-for-nothing. She endured humiliation and bided her time, entering the Tiangang Sect as a servant disciple. Through a fortunate encounter, she unlocked a portable space and ancient cultivation techniques, and befriended several close senior sisters and contracted divine beasts. After gaining opportunities in a secret realm, she successfully established her foundation, only to be assigned to Yuandan Peak, where she endured years of harassment from the peak master's daughter. She devoted herself to studying alchemy, swordsmanship, and formations, broadened her horizons through expeditions, steadily increased her cultivation, and found a secure place to call home as she forged her own smooth path to immortality.