Five-year-old Nan Yuanman grew up with her grandfather in a rural coffin shop, living a poor but warm life. One day, Jiang Lixuan, the youngest uncle of the Jiang family—the richest family in City S—suddenly appeared, saying she was the Jiang family's lost bloodline and wanting to take her back to the city. Yuanman was reluctant to leave her grandfather, but so as not to burden him, she carried a coarse cloth bundle and stepped alone into the wealthy family. Facing her grandmother's disdain, her aunt's scheming, and her cousin's vying for favor, she was neither humble nor overbearing, protecting the home in her heart with kindness and courage. The small coffin left to her by her grandfather holds her most precious thoughts.