Although originally serialized in a boy's love anthology magazine, the content of the manga mixes seinen action and mystery with shōnen-ai themes and thus does not fall clearly into either category. The volumes are stand alones, each with its own storyline and theme that fit into the broader arc of the general plot, which has Kubota and Tokitoh, the main characters, investigating a mysterious drug, 'W·A', and finding out about Tokitoh's past before his amnesia. As such, the overall series is largely character-driven, rather than action-driven, and other events and issues are shown as part of the lives of the main characters. The storytelling is done through a different side character for each volume, and the author has described the series as "the lives of the protagonists as seen, and described by an onlooker". There is plenty of violence and bloodshed in the manga, which also deals with serious issues, and a theme for each volume, such as the cult of religion, the power of words, the struggle for survival. The yakuza underworld serves as a setting for the series, but it is not the main focal point. Rather, it is the interactions between the two protagonists, and the exploration of their characters.