Chapter 150 On July 13, 3032, the world officially entered the Oxygen Depletion Era. At first, people assumed this disaster would pass quickly, much like the Food Crisis. But by 3035, the oxygen crisis had only worsened. Oxygen was a key binding agent in concrete. As oxygen levels dropped, more and more high-rise buildings began to show signs of instability—shaking foundations, unsteady staircases. High-rise properties were being sold off en masse, while suburban single-story homes surged in value.…