Judy and Mary
This single marks Takahashi's beginning partnership with ex-Judy and Mary member Takuya, who produced and arranged the first two tracks on the single. The 3rd track is a cover of the song that was originally sung by the Magokoro Brothers. The entire single is described as a "new breed rock", which includes the genres of rock, emo, punk, and reggae. Lyrically, the a-side song deals with the notion that communication is extremely important in any kind of relationship, hence the title "Communication". The musical aspect of the song showcases Takahashi's quick change from singing pop/rock music to punk/rock music.