In fact, during that time, Leng Yu never had a good night's sleep. He had to rely on alcohol to numb himself to sleep, with two guns placed by his bedside. Because any situation was too dangerous. The moment there's any leakage of his identity as a mole, he had no doubt that Xing Jifu would want him dead; and if his identity as a police officer was exposed, all three major gangs would certainly not let him go, and would probably butcher him anywhere in the world.
At that time, he truly understood, as his superiors had said, being undercover was like walking on a razor's edge. Those thin, sharp blades were densely scattered under his feet. He had to tread very lightly and cautiously. One wrong step would be like being pierced by a thousand blades, dying without a burial place.
