Chapter 21: "Third-Class Merit" Xia Mi's first thought was: My Third-Class Merit is finally showing up! A second later, she realized with a start that since she was trapped inside the wall, she would most likely never get that Third-Class Merit. The agony of missing a promotion and the fear of death sent Xia Mi's brain into overdrive. Her machine gun lay on the floor, slowly melting. With her gun and axe both destroyed by the Auntie, she had nothing left on her but a single Purification…