GRAFFERS are street artists who fight using graffiti. Iro, the leader of the Vertical Crew, wants to be the best of all of them, but his missing brother leads him to sneak into Gray City, a place where colors are forbidden. A surprise awaits Iro on the other side of the painted walls. When he returns to Bastion City, a world ruled by art, nothing will ever be the same. An evil darker than ink lies dormant behind each graffiti, and Iro's new visitor has the power to awaken it.