"Okaeri" no Zettaichi

"Okaeri" no Zettaichi (“おかえり”の絶対値) is Index's image song for Toaru Majutsu no Index II sung by her Japanese voice actor Yuka Iguchi.

It appears as the second track on the Toaru Majutsu no Index II Archives 1, and was released on May 25, 2011.