Gomennasai no Kissing You

The single release was announced on August 12, 2013, on E-girls' official website, along with release day, prices and editions.^[4] On August 30, the website announced more two editions of the single: One Coin CD and Music Card edition. On September 2, jacket covers and track list of the single were revealed. The single features a song of the group Flower, one of the groups included on E-girls. This is the second time a song of a specific group is being included in a E-girls single, with the first being "Dreaming Girls", of the group Dream, included on E-girls' debut single "Celebration!".^[5]

• CD+DVD (RZCD-59428/B):^[6] The CD+DVD edition includes the CD single with all tracks, the instrumental of "Gomennasai no Kissing You" and a DVD including the music video of the song and a making of from it. First presses of this edition comes in an EP package size.
• CD only (RZCD-59429):^[7] The CD only edition includes the CD single only with all tracks and the instrumentals of it.
• One Coin CD (RZC1-59430)^[8] and Music Card (AQZ1-76017~45):^[9] The One Coin CD edition includes the CD single with only the track "Gomennasai no Kissing You" and a different jacket cover. The Music Card includes only the track "Gomennasai no Kissing You" in a special card, only available in Japan. It was released in 29 editions, one per member. Both types were only available to purchase on mu-mo online shop, LDH Mobile shop and at live & event venues.

"Gomennasai no Kissing You" was written by Yu Shimoji, composed and arranged by Clarabell. "Hatsukoi" was written by Narumi Yamamoto, composed by Chris Meyer, Takumi Tsukada and Grace and arranged by Pochi. It is a song of the group Flower. "Fancy Baby" was written by Kanata Okajima, who also composed the song with Jon Hallgren. "Koi no Boogie Woogie Train" was written by Minako Yoshida, composed by Kanata Okajima, and arranged by Yuta Nakano.

• Vocalists: Ami, Shizuka (Dream), Reina Washio (Flower)
• Performers: Dream, Happiness, Flower, Yuzuna Takebe, Kyoka Takeda, Misato Hagio, Rio Inagaki, Anna Ishii, Nonoka Yamaguchi (Bunny), Risa Ikuta, Momoka Nakajima (EGD)

A short version of the music video for the song was revealed on September 9, 2013, on Avex Trax's YouTube channel. The full version was broadcast the following day, September 10, on the music channel M-On!. It features the girls in an amusement park performing the song. The middle part of the video includes a dance battle between the performers of the groups Flower and Happiness, and a special part including the members of the non-debuted group Bunny in marching band outfits. At the end, all the girls made the sign of "apology" in a circle.^{[clarification needed]} The music video was directed by Shigeaki Kubo.

"Gomennasai no Kissing You" was used as theme song for the Japanese movie The Apology King. The song was also performed on some TV shows, such as Music Dragon and Music Japan. "Hatsukoi", Flower's song, was used as theme song for Samantha Thavassa's Samantha×Kawaii×Art TV advertisement for the month of September.^[10] "Fancy Baby" was used as theme song for CX's TV show Mezamashi News during the month of October.^[11]

Notes

• The iTunes Store edition does not include Flower's song, "Hatsukoi", due to the group being signed with Sony Music Associated Records Inc., who released the song separately.^[13] It also does not include instrumentals.