錦戶亮
As with their previous albums, Kanjani Eight also worked on their own solo material. For this time around, the solo disc that came with the regular edition of "Fight" contained two unit songs and two solos. Ryo Nishikido and Subaru Shibutani wrote the lyrics to their solo pieces, "Ah" and "Scarecrow", while Nishikido also composed his own music. Shibutani also took charge for a good portion of the song's overall production. Shota Yasuda wrote the lyrics and composed the music for his unit piece with Tadayoshi Ohkura and Shingo Murakami, titled "Yoru na Yoru na ☆ Yō NIGHT". Ohkura and Murakami also helped in the production. Ryuhei Maruyama and You Yokoyama were the only two that did not compose anything for their own song but assisted with the production.