When Rebecca was little, her mother died when Rebecca said that she is hungry. The two had not eaten for two days because they were on the run from the people hunting down the former nobility. She left Rebecca in the Flower Field, saying that she will be back with food. Unfortunately, she was discovered by the hunters and was killed. The Thunder Soldier carried her mother back, saying that even though he couldn't protect her mother, he will protect Rebecca forever. The rest of Rebecca's childhood is shown, including the two of them living together, and Thunder Soldier teaching Rebecca how to fight.
As Rebecca walks into the arena, she is booed by the audience. Luffy is angered and says that she is a nice person. One of the prisoners replies that everyone despises her because of her grandfather, the former King who destroyed the country many years ago.