On the day Lucy's mother passed away, Lucy called her father and uncle. Her father didn't want her, and just as Lucy was about to be sent to the orphanage, the wealthy man Robert Harris picked her up and became her daughter, fulfilling her grandmother's dream of becoming a granddaughter. The richest man's father helped her fight against villains, the stingy uncle earned money to spend on Lucy, and her uncle's brothers were also the best in the world with Lucy. Lucy, who possesses the koi system, also reciprocated by helping Robert Harris catch the traitor in the company and cure his disabled uncle's leg. She was also accepted as a closed door disciple by the divine physician and master of Willow Grove Guild.