So What If Earth Runs Out of Oxygen? I Can Make It by Hand

【Global oxygen shortage】【Apocalyptic survival】【Rivalry between great powers】 One day in 2035, Earth’s oxygen reserves are depleted. What fate will humanity face? The protagonist, Mu Qiu, unexpectedly gains the ability to make oxygen crystals by hand. In an age when order has collapsed, survival is a huge problem. If people with ill intentions find out about Mu Qiu’s ability, that would put Mu Qiu in grave danger as well.