Seiji Kameda
Chara re-debuted as a major label artist in 2006, with the release of the single "Sekai". Her single "Fantasy" was a minor hit, reaching No. 13 on Oricon charts. It was written in collaboration with Seiji Kameda, producer for artists such as Do As Infinity and bassist for the band Tokyo Jihen. The following album, "Union", also fared well. It reached the top 5 in Oricon's album charts, and outsold her former two Sony released albums. On the back of Chara's returned success, Sony released the compilation album, "".