Tak Matsumoto
In 2006, Kamiki signed on with Giza Studio and released her first major label single "Communication Break" on March 15. On April 12, her second single "Pierrot" was released. The song was respectively written and composed by B'z members Koshi Inaba and Tak Matsumoto, although the lyrics in Kamiki's version were slightly modified. It was released on the same day as the B'z single "ゆるぎないものひとつ" (Yuruginaimono Hitotsu), which contained "Pierrot" as its 2nd Beat (B-side). The single reached 9th place on the Oricon charts. Her third single "Mou Kimidake-wo Hanashitari-wa Shinai" peaked at the 11th place, and her first full album "Secret Code" debuted at 5th place. In order to promote Secret Code's release, Kamiki held two mini-concerts. One was as "Black Kamiki" and was performed at Tower Records in Shibuya. The other (later on the same day), was as "White Aya" and was performed at HMV in Shibuya. Entrance was free, provided that you had purchased Secret Code at the corresponding store.