I Enlisted at 150 Kilos, and the Commander Wants Me to Be a Military Doctor?

To fulfill his grandfather's dying wish, Lu Xuan, who weighs over 300 jin, pretends to enlist. He figures he'll be rejected as soon as he takes the physical exam. But to his utter surprise, his old military-doctor grandfather not only fakes an illness, but even gets an old comrade who's a commander to arrange Lu Xuan's special admission! At nearly half a ton, Lu Xuan is forced to enlist. Just as he starts to worry, the System awakens. "I can trade fat for abilities? What are we waiting for? Let's trade!" Lu Xuan trades fat for abilities while continuing to stuff himself and gain weight. When the three-month recruit training period ends, Lu Xuan steps on the scale. Good heavens, 410 jin. Up he goes! The military district commander is stunned. "What the hell? The training must not be intense enough. Starting today, the recruits' five-kilometer run is now fifty kilometers!" "One thousand pull-ups!" "Two thousand push-ups! I refuse to believe he still won't lose weight!" Another three months pass, and Lu Xuan steps on the scale again. Good heavens, 480 jin. He's gained 70! The entire army: ???? From then on, Lu Xuan's name rises to fame. But no one knows that Lu Xuan, weighing half a ton, has quietly mastered every military skill! His body is comparable to an aerospace carrier. He's the pinnacle of infantry worldwide, the king of all soldiers! Lu Xuan: "From today on, call me the Super Heavyweight Special Forces Medic!"