In the Four Cities of Lingyuan, spiritual energy is bound to technology, and class barriers are rigid. At the awakening ceremony in the Spirit-Pattern Tower, four teenagers from different cities, Lin Mo of Lingshu City, Jiang Xun of Iron City, Su Xiao of Wind City, and Little Fatty of Rock City, simultaneously awaken an ancient, long-lost source energy. Their awakening triggers a resonance across the cities, shattering the monopoly on spiritual energy.
