Jindo is the pet dog belonging to Sun Bak. Before she takes liability for her brother's embezzlement, she takes Jindo over to her trainer to be cared for while she was away. After escaping prison with Min-Jung and deserting Mrs. Cho, Sun returned to her trainer and her dog, whom greeted her with much excitement. Sun's trainer mentioned that Jindo would often stare at the gates to his home in the hopes that his owner would return.