Before Mr. Liang met Xiang Kun, he had already possessed the ability to fly. In the "Biological Components" system he created, there were specific components used to assist with flying. These had been iterated many times and were very mature, capable of maintaining flight at high speeds for a long duration.
However, the essential principle of flight in that system was not much different from ordinary fixed-wing aircraft. It had some inherent structural limitations and was influenced by many objective factors.
Now, this system is fundamentally still connected to him according to Mr. Liang's original "Biological Components" system. This layer, which covers the surface of his body, forms an armor-like substance that can also be deemed as a part of his body, communicating with his own consciousness through the high-dimensional factors he controls.