黒子のバスケ
Oldcodex (stylized as OLDCODEX) is a Japanese rock band from Tokyo, Japan, formed in 2009. They performed the opening themes for the anime series "Free!", "Servamp" and "God Eater" and the ending themes for "Kuroko's Basketball" and "Togainu no Chi". They performed at Nippon Budokan on February 11, 2015.