I Pretended to Be Sick in District 9

Qin Lie traveled into "Special Zone 9" and became the sick younger brother of the protagonist Qin Yu. Everyone said he wouldn't survive the winter. No one knew that this boy, who could barely walk without breathing, had a complete set of special operations manuals in his head. The knives of the Scrap Iron Gang, the guns of the Black Tiger Gang, the snipers in the dark... Qin Yu fought a bloody path in front, while Qin Lie blocked every loophole for him from behind. Until one day, the enemy finally broke through all Qin Yu's defense lines, grinning and preparing to reap the fruits of victory. Then, they saw Qin Lie. ——The smiling boy who had been sitting in a wheelchair stood up slowly.