The single debuted at number two on the Oricon weekly chart and went on to sell over 43,000 copies in Japan.

"Satisfaction" was written by Junji Ishiwatari, composed by Hiroki Horiko, and arranged by Satoru Hiraide.

"Friends" was written by Lee Jae-jin and Hisashi Kondo, composed by Choi Jong-hoon and Shotaro Kobayashi, and arranged by F.T.

[1] "Satisfaction" was recorded in Korean and is included as a bonus track on the CD and DVD edition of F.T.

[5] "Satisfaction" was used as the ending theme music for Fuji Television's anime Toriko.

[9] It charted for 13 weeks[1] and went on to sell over 43,000 copies in Japan.a On the issue dated May 2, 2011, the song debuted at number 9 on the Billboard Japan Hot 100.