Gangs of teenagers have been at ends conquering turfs around the city, but with the city overthrown by large enforcements, they'll have to put their conflict aside.
The sun of tomorrow will never rise in this world, but with the help of rhythmic elements, all of humankind will be saved from this apocalypse.
In 6th Century China, Four Kingdoms (formerly 5) were battling each other ever since their ancestors split the kingdom into many, only to unite China as one. Their heated battles, however, were interrupted by a stronger and unknown force: the Chi.
A war between four kingdom (formerly 5) has to be put on hold, as a large unknown army named "the Chi" emerged from the sky and onto the battlefield, with a motive on their hands; to unite China, ruthlessly.
Teenagers, and Adults alike are pitted to a war against a group of treacherous gangs called "R.A.G.A.S.", lead by "The Monarch". The Japanese have no choice, but to fight.