Xiao Mandong, a woman from a traditional Chinese medicine family, entrusted her life to the wrong person in her past life, died in resentment, and was reborn back to the sixteenth day of her newlywed life. She timely saw through the betrayal of her husband and family, decisively divorced, and the ancestral silver ring unexpectedly activated a portable space containing a spiritual spring and supplies. To protect her bullied younger sister, she gave up her city job to go to the countryside Red Flag Production Brigade, established a firm foothold in the village with superb medical skills and a decisive temperament, and forged a good bond by treating the grandmother of soldier Zhou Qichuan. Her ex-husband Lu Jianguo harbored resentment and attempted to kidnap her sister for revenge, ultimately reaping what he sowed and suffering severe injuries. Xiao Mandong shook off her wrong marriage, established herself through medical skill, protected her loved ones, and started a completely new life.