Kawada said that she was challenged in writing lyrics for the song, since her previous single ``Get My Way'' was different from her previous singles. Kawada would read the source material of every anime before writing lyrics for its theme songs. She named the song ``Joint'' because of Shana II's theme of characters Shana and Y*ji Sakai fighting together. In response to comments that the expressions in _her_ voice were very varied, Kawada stated that she simply sings with the music in the way that she most enjoys. <sep>, Pronoun: her <sep>, A: Shana <sep>, B: Kawada