YesAsia's description of Itteki no Eikyou
Back in 2011, UVERworld sang anime series Blue Exorcist's first opening theme Core Pride. Fittingly, the band now also provides Itteki no Eikyou as the opening theme for the anime's second season, Blue Exorcist: Kyoto Saga. For the B-sides, the band includes Emu, an insert song for the movie Shinjuku Swan II, and Forever Young, a collaboration with AK-69.
http://www.yesasia.com/itteki-no-eik...0-en/info.html