The band began in 2004 as a one-man
dōjin music unit consisting of musician Kisida Kyodan, who covered songs from different series, such as
Touhou Project and video games by
Key. He released a CD featuring original songs and covers of songs from
Type-Moon games and
Touhou Project at Winter
Comiket in 2005. Vocalist Ichigo joined in 2007. The band made their major debut in 2010 with the release of the single "Highschool of the Dead" under Geneon Universal (now
NBCUniversal Entertainment Japan); the title song is used as the opening theme to the 2010 anime television series
Highschool of the Dead. The band released its second single "Strike the Blood" on October 30, 2013 under
Warner Bros. Home Entertainment; the title song is used as the first opening theme to the 2013 anime television series
Strike the Blood. They released their third single on July 29, 2015; the title song is used as the opening theme to the 2015 anime television series
Gate. They released their fourth single on January 27, 2016; the title song is used as the opening theme to the second season of
Gate. They released their fifth single "Tenkyou no Alderamin" on July 20, 2016; the title song is used as the opening theme of the 2016 animated television series
Alderamin on the Sky. They released their sixth single "Blood on the EDGE" on December 26, 2016; the title song is used as the opening theme of the 2016 animated OVA series
Strike the Blood II. Their seventh single, "Stray," was released on February 7, 2018, and is used as the opening theme for the animated series
Hakata Tonkotsu Ramens. Their eighth single, "Sirius," was released on August 22, 2018, and is used as the opening theme for the animated series
Sirius the Jaeger. Their ninth single, "nameless story", is the ending theme for
A Certain Scientific Railgun T, the third season of the animated series
A Certain Scientific Railgun. In October 2021, they released their first best-of album
Isekaitensei Shitara Best Album Deshita which included all of their past singles, a reboot version of their major debut single
Highschool of the Dead[2021] and some other songs from their Genon Universal Entertainment discography. In December 2021, they released their first live album
Super Pro Max Ti which included 14 songs (live ver.) and a new song called
TRIGGER. They will release the single on November 30, 2022; the title song is used as the opening theme to the anime series
Reincarnated as a Sword. ==Discography==