Alice Nine

 August 2004, Alice Ninee formed after the disbandment of the band Givuss, and the band's vocalist, Shou, and guitarist Tora continued on to search for members to form a new band. Saga, the bassist for the band Delta Ark, and Nao, drummer for the bands Fatima and RusH, were also seeking bandmates as well, and the four members eventually joined together. Hiroto was the last member to join after Shou, Tora, Saga, and Nao spotted him at a performance with his band at the time, Baquepia. Shou explains that the "Alice" in the band's name was something that they believed sounded "very visual kei" to them, while the "Nine" is written in kanji and represents their origins as a Japanese band.

Their first concert was held at the Ikebukuro Cyber on May 11, 2004 and soon after they released their first single, Namae wa, Mada Nai in July, and they soon toured with fellow PS Company band BIS. In November, their first EP, Gion Shouja no Kane ga Naru, was released, and later that month, they did a nation-wide tour with the band Karen from Under Code Productions.

In 2005, the pace of CD releases increased; the band released the singles "Gin no Tsuki Kuroi Hoshi," "Yami ni Chiru Sakura," and "Yuri wa Aoku Saite" consecutively for three months. These singles were eventually compiled onto their first major EP, Kasou Musou Shi, through a joint deal with PS Company and King Records. Alice Nine also went on tour with several bands throughout the year, including Ayabie, Kra, and Kagrra. Following these events, the band had its first solo tour, Alice in Wonder Tour, in August that year