2nd Anime Song Answer Reveal and Explanation!!

The answer to the 2nd quiz where you guess the anime song just from the lyrics is "Magic∞world", written by Maon Kurosaki!! This song was the ED theme for the TV anime "A Certain Magical Index II", which aired in October 2010! Apparently, when the MV was released back then, Maon Kurosaki sang it while cosplaying Index, a character from the series, which had a huge impact on the anime song scene!!