Seventeen years ago, the Seven Heroes saved the world from annihilation, but it came at the price of Seomun Yeop, the mightiest of them all. Currently, peace reigns supreme, rendering the espers' supernatural gifts redundant, including those of the Seven Heroes. To enable espers to exhibit their abilities, Battle Field, an action-packed virtual reality game, fills the void. Regrettably, Korea's recent lacklustre tournament showings cast a shadow on its glorious past, once home to the world's top esper. However, Seomun Yeop resurfaces unexpectedly, kindling hope. Will this celebrated champion be able to rescue the nation once more?