Personnel

• Kaoru Okubo
  Kaoru Okubo
  is a male Japanese music arranger who is mostly known for his musical contributions to anime.-Music arranged:*Asatte no Houkou*Bincho-tan*Cosmic Baton Girl Comet-san*D.C.S.S...
  
   - Keyboard and Programming (1,2,3,4,8,11)
• Ai Takahashi
  Ai Takahashi
  is a Japanese pop singer formerly associated with Hello! Project, and best known as leader of Morning Musume and Hello!Project until 2011, and former member of its popular subgroup, Mini Moni...
  
   - Chorus (1,2,3,5,6,7,8,9,10,11,12)
• Risa Niigaki
  Risa Niigaki
  is a fifth generation member and current leader of the Japanese pop group Morning Musume. She joined Morning Musume in 2001 along with Ai Takahashi, Asami Konno and Makoto Ogawa. She grew up in Yokohama after moving there at age six. As of 2009, she was the longest-serving sub-leader of Morning...
  
   - Chorus (1,6)
• Koji Kamada - Guitar (2,7,8,12), Electric Guitar and Air Guitar (5)
• U.M.E.D.Y - Rap (3)
• Sayumi Michishige
  Sayumi Michishige
  is a sixth generation member of the J-pop group Morning Musume and has the third longest tenure of any member in the group ....
  
   - Chorus (4)
• Shōichirō Hirata - Programming (5,7)
• Tsunku
  Tsunku
  , better known professionally as , is a prolific Japanese record producer, songwriter, and vocalist.He is best known for having two major roles in the Japanese music landscape: first as the lead singer of the popular rock group Sharam Q, and now as the producer, primary composer, lyricist and main...
  
  - Chorus (5,12)
• AKIRA - Programming (6)
• Shunsuke Suzuki - Programming and Guitar (9)
• Takao Toshiyuki - Drums (9)
• Yuusuke Itagaki - Programming and Guitar (10)
• Masanori Takumi - Programming, Guitar and Bass (12)

External links

• 12, Smart at the official Hello! Project discography