 The opening themes are "HOWLING" by abingdon boys school (eps 1-14) and "Kakusei Heroism ~The Hero Without A Name~" by An Cafe (eps 15-23,25) and the ending themes are "Tsukiakari" by Rie fu (eps 1-14) and "Dreams" by HIGH and MIGHTY COLOR (eps 15-24).A document containing information about Bones staff and production details, was leaked onto the Japanese filesharing site uploader.jp, within the Microsoft Excel spreadsheet format, on July 2008.Among other details, including confidential contact information in regards to Bones staff members, it revealed that a second "Darker than Black" and "Fullmetal Alchemist" series was in production and were being directed by Tensai Okamura and Yasuhiro Irie respectively.