A Quy was a famous general known for his loyalty during the reign of Emperor Qianlong. He was upright and resourceful, bringing to light the dark deeds within the court with his talent and bravery to reassure the people. The movie "Thiết Tướng Quân" also depicts many of his challenges, as his loyalty was sometimes doubted by the emperor.

In one instance, while leading his troops on a punitive expedition, he received an imperial order to return to the capital within seven days. On the last day, he brought the captured leader of the rebels back to the capital, solidifying Emperor Qianlong's trust and silencing the malicious courtiers. Despite facing opposition, A Quy decided to resist the order, attacked the rebel camp, captured the leader, and then returned to the capital. Fortunately, he arrived back on the last day of the deadline, presenting the victorious suppression of the rebels to the emperor, thereby dispelling any doubts and silencing the scheming courtiers.