龜田誠治
"Akai Ito" is a cover of one of Kobukuro's lesser known songs from their independent releases. Kobukuro's team wanted to bring focus to the song once again and suggested to the band they have a female vocalist cover it. Upon hearing Kobukuro perform the song at a Warner Music Japan Convention concert, Aragaki fell in love with the song and agreed to cover it. Aragaki's version was subsequently produced by Tokyo Jihen member Seiji Kameda.