 The "D.Gray-man" manga series follows the adventures of Allen Walker, an Exorcist who uses the power of a divine weapon called "Innocence", and his comrades in the Black Order as they fight against the akuma, demons created from human souls by an ancient sorcerer known as the Earl of Millennium, who plans to destroy all of humanity.Since its premiere, over two hundred chapters, referred to as "nights", have been released in Japan.The series was put on twice due to Hoshino falling ill, but the series continued a few weeks after each incident.