[3][7] In August 1994, Kamijo and Mayu (then using the names Shoki and Kaito respectively) met for the first time while were working as roadies for Malice Mizer.

That same year they released their first recording "Saikai no Hana", distributed freely at the anniversary concert in a limited number of 100 copies.

[10] The band signed with the German CLJ Records label and released the EP Lyrical Sympathy on October 31, both in Japan and Europe.

Their song "The Love From A Dead Orchestra" also appeared on a compilation album released by Sony BMG in Germany on November 9, called Tokyo Rock City.

[10] On September 23, 2008, Kamijo modeled clothing for the brand Alice and the Pirates on the runway at Individual Fashion Expo IV.

In January 2013, Kamijo announced he would start a solo career, with his first release being the single "Louis ~Enketsu no La Vie en Rose~" on August 28.

[17] Kamijo also sang backup on the 2013 debut album Heartstrings by Aisenshi, the new band of Eizo Sakamoto (Anthem) and She-Ja (Volcano).

[18] For his December 28, 2015 concert at Zepp DiverCity, which was the finale of a world tour that celebrated his 20th anniversary as a musician, Kamijo recruited multiple members of his former bands to perform with him.

[22] In August 2024, Kamijo announced he would be relocating his base of operations to Los Angeles, California in summer 2025 in order to learn film music production in Hollywood and to study under a specific vocal coach.