Fuyuki City, more commonly called Duel Town, the site of a brutal, ongoing war between a series of rival gangs. The difference here is that instead of with guns, battles are fought with monsters, hence it's nick-namesake. There is no peace here, only the constant sound of summonings and falling life totals. Amongst the chaos, countless gangs rise and fall, but there are four dominant clans, currently vying for control of the central district. The first and oldest one of these gangs is the Shining Force, consisting mainly of those who favor Angel and Thunder-type monsters. Their biggest rival, the Darklancers, prefer Demon and Zombie-types. The Aqua Army, obviously contract Water-element duelists, whilst the Sonic Stream consists of those who favor the Wind-element. The core of the city is under constant dispute between these great forces.

The outskirts of the town, if possible, are even more chaotic. Countless smaller clans scramble for bits and pieces of territory, eager to make a name for themselves. Out here is where gangs form and disband daily. In the western district, the Pyroclasm gang maintains a delicate air of control amidst the constant uprisings. However, whispers of a new upcoming clan have spread rapidly, a clan with enough strength to take over. Concerned by such rumors, the leader of the Pyroclasms has commanded a pre-emptive attack, seeking to nip this growing threat in the bud...