Undergirls
The Undergirls (アンダーガールズ, or Under Girls) are an special group/team of girls that since the term was included in the 1st Senbatsu Election, take charge of the main B-side of most of the AKB48 Singles and recently also SKE48, SDN48, NMB48 and Nogizaka46 (also under the name Under Members) Singles.
Contents
History
The Undergirls were introduced in the 1st Senbatsu Election, where the girls that ranked from 22# to 30# were given the chance to sing the B-side track of the single (Iiwake Maybe) that the Senbatsu elected (21#~1#) were going to sing.
Previous to this, all the original B-sides were also done by the Senbatsu of that single, what now gave the chance to a lot of other girls to actually take part of a single release (with most of the them doing it for the first time).
The first Undergirls generation, consisted of 9 girls and sung the track Tobenai Agehachou, which also got a PV, marking the first time an AKB48 B-Side got a Music Clip.
Later on for the next single RIVER (that also introduced the Theater Girls), the Undergirls concept was used again. With the difference that this time, the manager decided the members making an almost completely different selection of girls compared to the first generation.
The Undergirls weren't used in the following single (Sakura no Shiori) and made a comeback in Ponytail to Shushu, being used in all singles until GIVE ME FIVE!, when Undergirls were replaced by Special Girls, to then return on Gingham Check.
The Undergirls concept is not used on Janken singles, such as Chance no Junban and Ue Kara Mariko. On Kaze wa Fuiteiru, the Undergirls were divided on three groups: Undergirls, Undergirls Baragumi and Undergirls Yurigumi.
Undergirls on SKE48
For SKE48's 3rd Single Gomen ne, SUMMER, the Undergirls concept was implemented with SKE48 for the first and only time.
In difference with AKB48, 2 different groups of Undergirls were used in the same single (Undergirls A and Undergirls B). Both groups featured an small group of girls and different songs Undergirls A was an Exclusive-track and Music Video of Type-A as Undergirls B were of Type-B.
Undergirls on SDN48
SDN48 started using the Undergirls concept since the their first single, also implementing the Undergirls A/Undergirls B concept SKE48 started.
Undergirls on NMB48
NMB48 started using the Undergirls concept on Junjou U-19. Unlike AKB48, SDN48 and Nogizaka46, the Undergirls don't have a PV.
Undergirls on Nogizaka46
Nogizaka46 started using the Undergirls concept on Guru Guru Curtain. The Undergirls, also known as Under Members, have a B-Side on one of the single types, including a PV.
Undergirls Generations (AKB48) Members bolded are Centers
( Undergirls Participation Table (AKB48))
1st Generation
Tobenai Agehachou (Iiwake Maybe) (9 Members (22#~30#))
- Team A: Takajo Aki (23#)
- Team K: Ohori Megumi (24#) · Masuda Yuka (25#) · Matsubara Natsumi (30#)
- Team B: Yonezawa Rumi (22#) · Hirajima Natsumi (26#) · Sashihara Rino (27#) · Katayama Haruka (28#)
- Team S (SKE48): Matsui Rena (29#)
2nd Generation
Kimi no Koto ga Suki dakara (RIVER) (16 Members)
- Team A: Oota Aika · Katayama Haruka · Kuramochi Asuka · Sashihara Rino · Takajo Aki · Maeda Ami · Nakagawa Haruka
- Team K: Kikuchi Ayaka · Fujie Reina · Nito Moeno
- Team B: Oku Manami · Ishida Haruka · Sato Amina · Sato Sumire · Komori Mika
- Team S (SKE48): Matsui Rena
3rd Generation
Nusumareta Kuchibiru (Ponytail to Shushu) (16 Members)
- Team A: Iwasa Misaki · Oota Aika · Katayama Haruka · Kuramochi Asuka · Sashihara Rino · Maeda Ami
- Team K: Akimoto Sayaka · Kikuchi Ayaka · Nito Moeno · Fujie Reina
- Team B: Oku Manami · Komori Mika · Sato Amina · Sato Sumire
- Team S (SKE48): Matsui Rena · Yagami Kumi
4th Generation
Namida no SeeSaw Game (Heavy Rotation) (18 Members (22#~40#))
- Team A: Ota Aika (22#) · Katayama Haruka (37#) · Kuramochi Asuka (23#) · Matsubara Natsumi (39#)
- Team K: Umeda Ayaka (32#) · Nito Moeno (29#) · Fujie Reina (33#) · Yonezawa Rumi (34#)
- Team B: Ishida Haruka (27#) · Komori Mika (30#) · Sato Sumire (31#) · Hirajima Natsumi (26#) · Masuda Yuka (25#)
- AKB48 Kenkyuusei: Shimazaki Haruka (28#) · Yamauchi Suzuran (36#)
- Team S (SKE48): Oya Masana (24#)· Yagami Kumi (38#)
- Team KII (SKE48): Takayanagi Akane (35#)
5th Generation
Boku Dake no value (Beginner) (22 Members)
- Team A: Iwasa Misaki · Oota Aika · Katayama Haruka · Nakagawa Haruka · Maeda Ami
- Team K: Kikuchi Ayaka · Fujie Reina · Nakatsuka Tomomi · Nito Moeno · Matsui Sakiko · Yonezawa Rumi
- Team B: Ishida Haruka · Oku Manami · Komori Mika · Sato Sumire · Hirajima Natsumi · Miyazaki Miho
- Team S (SKE48): Kizaki Yuria · Yagami Kumi
- Team KII (SKE48): Ishida Anna · Takayanagi Akane · Mukaida Manatsu
6th Generation
Guuzen no Juujiro (Sakura no Ki ni Narou) (18 Members)
- Team A: Oota Aika · Nakagawa Haruka · Maeda Ami
- Team K: Uchida Mayumi · Kikuchi Ayaka · Nito Moeno · Fujie Reina · Yokoyama Yui
- Team B: Ishida Haruka · Oku Manami · Komori Mika · Sato Sumire · Miyazaki Miho
- Team S (SKE48): Yagami Kumi · Oya Masana
- Team KII (SKE48): Takayanagi Akane · Mukaida Manatsu
- Team E (SKE48): Kimoto Kanon
7th Generation
Hito no Chikara (Everyday, Katyusha) (29 Members)
- Team A: Iwasa Misaki · Ooya Shizuka · Katayama Haruka · Nakagawa Haruka · Nakata Chisato · Nakaya Sayaka · Matsubara Natsumi
- Team K: Uchida Mayumi · Umeda Ayaka · Tanabe Miku · Nakatsuka Tomomi · Fujie Reina · Matsui Sakiko · Yonezawa Rumi
- Team B: Ishida Haruka · Kobayashi Kana · Sato Amina · Sato Natsuki · Suzuki Mariya · Chikano Rina · Hirajima Natsumi
- AKB48 Kenkyuusei: Takeuchi Miyu · Nakamura Mariko · Mori Anna · Nakamata Shiori
- Team S (SKE48): Yagami Kumi
- Team KII (SKE48): Takayanagi Akane · Mukaida Manatsu
- Team N (NMB48): Yamada Nana
8th Generation
Dakishimechaikenai (Flying Get) (18 Members (22#~40#))
- Team A: Ota Aika, Oya Shizuka, Nakagawa Haruka, Maeda Ami
- Team K: Umeda Ayaka, Nito Moeno, Fujie Reina, Matsui Sakiko
- Team B: Komori Mika, Sato Sumire, Hirajima Natsumi, Miyazaki Miho
- Team 4: Ichikawa Miori, Oba Mina
- Team S (SKE48): Oya Masana, Suda Akari
- Team KII (SKE48): Takayanagi Akane, Hata Sawako
- Team N (NMB48): Yamamoto Sayaka
9th Generation
Kimi no Senaka (Kaze wa Fuiteiru) (19 Members)
- Team A: Iwasa Misaki, Ota Aika, Nakagawa Haruka, Maeda Ami
- Team K: Kikuchi Ayaka, Fujie Reina
- Team B: Ishida Haruka, Komori Mika, Sato Sumire, Miyazaki Miho
- Team 4: Abe Maria, Ichikawa Miori, Iriyama Anna, Shimazaki Haruka, Yamauchi Suzuran
- Team Kenkyuusei: Kato Rena
- Team KII (SKE48): Takayanagi Akane
- Team E (SKE48): Kimoto Kanon
- Team Kenkyuusei (NMB48 2nd Gen): Jo Eriko
10th Generation
Nante Bohemian (Gingham Check) (16 Members (17#~32#))
- Team A: Takajo Aki (#17) · Kuramochi Asuka (#22)
- Team K: Akimoto Sayaka (#20)
- Team B: Sato Amina (#21) · Masuda Yuka (#26)
- Team 4: Shimazaki Haruka (#23)
- Team S (SKE48): Oya Masana (#27) · Yagami Kumi (#28) · Suda Akari (#29) · Kizaki Yuria (#31)
- Team KII (SKE48): Takayanagi Akane (#24) · Hata Sawako (#25) · Furukawa Airi (#30) · Ogiso Shiori (#32)
- Team N (NMB48): Yamamoto Sayaka (#18) · Watanabe Miyuki (#19)
11th Generation
Tsugi no Season (UZA) (16 Members)
- Team A: Iwata Karen, Tano Yuuka, Iriyama Anna, Takahashi Juri, Kawaei Rina, Oshima Ryoka
- Team K: Nagao Mariya, Muto Tomu
- Team B: Kato Rena, Ichikawa Miori, Takeuchi Miyu
- Team S (SKE48): Kizaki Yuria
- Team KII (SKE48): Mukaida Manatsu
- Team E (SKE48): Kimoto Kanon
- Team N (NMB48): Yamada Nana
- Team H (HKT48): Kodama Haruka
12th Generation
Waiting Room (So long!) (22 Members)
- Team A: Iriyama Anna, Oshima Ryoka, Kawaei Rina, Kikuchi Ayaka, Takahashi Juri
- Team K: Shimada Haruka, Nagao Mariya
- Team B: Oba Mina, Kato Rena, Fujie Reina
- Team S: Kizaki Yuria, Suga Nanako, Suda Akari
- Team E: Kimoto Kanon, Furuhata Nao
- Team N: Yamada Nana
- Team M: Yagura Fuuko
- Team BII: Yabushita Shu
- Team H: Ota Aika, Kodama Haruka, Miyawaki Sakura
- HKT48 Kenkyuusei: Tashima Meru
13th Generation
Bara no Kajitsu (Sayonara Crawl) (16 Members)
- Team A: Iwata Karen, Oshima Ryoka, Takahashi Juri, Tano Yuuka
- Team K: Muto Tomu
- Team B: Kojima Natsuki
- Kenkyuusei: Okada Nana, Kojima Mako, Sasaki Yukari
- Team KII: Mukaida Manatsu
- Team E: Furuhata Nao
- Team N: Yoshida Akari
- Team M: Yogi Keira
- Team H: Matsuoka Natsumi, Moriyasu Madoka
- HKT48 Kenkyuusei: Tani Marika
14th Generation
TBA (Koi Suru Fortune Cookie) (16 Members (17#~32#))
- Team A: Iriyama Anna (#30) · Kawaei Rina (#25)
- Team K: Kitahara Rie (#21)
- Team B: Umeda Ayaka (#19) · Fujie Reina (#32)
- Kenkyuusei: Minegishi Minami (#18)
- Team S (SKE48): Oya Masana (#29) · Kizaki Yuria (#22)
- Team KII (SKE48): Takayanagi Akane (#23) · Shibata Aya (#17) · Furukawa Airi (#27)
- Team E (SKE48): Kimoto Kanon (#31)
- Kenkyuusei (SKE48): Matsumura Kaori (#24)
- Team M (NMB48): Yamada Nana (#28)
- Team H (HKT48): Miyawaki Sakura (#26)
- Team J (JKT48): Takajo Aki (#20)
Undergirls Generations (SKE48)
1st Generation
Shoujo wa Manatsu ni Nani wo Suru? (Gomen ne, SUMMER) (Undergirls A, 7 Members)
- Team S: Kinoshita Yukiko · Takada Shiori · Kuwabara Mizuki · Suda Akari
- Team KII: Saito Makiko · Wakabayashi Tomoka
- SKE48 Kenkyuusei: Yamada Erika
Hazumisaki (Gomen ne, SUMMER) (Undergirls B, 8 Members)
- Team S: Oya Masana · Nakanishi Yuuka · Hirata Rikako · Hiramatsu Kanako
- Team KII: Uchiyama Mikoto · Ogiso Shiori · Furukawa Airi · Matsumoto Rina
Undergirls Generations (SDN48)
1st Generation
Eros no Trigger (GAGAGA): (Undergirls A, 11 Members)
- 1st Generation: Okouchi Misa · Imayoshi Megumi · Kaida Juri · Hatakeyama Chisaki · Mitsui Hiromi · Nachu · Nishikunihara Reiko
- 2nd Generation: Oyama Aimi · Kimoto Yuki · Fujikoso Yumi · Natsuko · Matsushima Rumi
Sado e Wataru (GAGAGA): (Undergirls B, 12 Members)
- 1st Generation: Kondo Sayaka · Kouchi Masami · Tezuka Machiko
- 2nd Generation: Aikawa Yuki · Akiko · Ito Mana · Takahashi Yui · Tanisaki Tomomi · Tsuda Marina · Fukuda Akane · Hosoda Miyuu · Ninomiya Yuka
2nd Generation
Tengoku no Door wa Sankaime no Bell de Aku (Ai, Chuseyo): (Undergirls A, 12 Members)
- 1st Generation: Akita Kazue · Urano Kazumi · Ohori Megumi · Chen Qu · Tezuka Machiko · Noro Kayo · Hatakeyama Chisaki
- 2nd Generation: Ito Mana · Kimoto Yuki · KONAN · Ninomiya Yuka · Matsushima Rumi
Awajijima no Tamanegi (Ai, Chuseyo): (Undergirls B, 12 Members)
- 1st Generation: Imayoshi Megumi · Okouchi Misa· Kaida Juri · Nachu · Mitsui Hiromi
- 2nd Generation: Akiko · Oyama Aimi · Tsuda Marina · Natsuko · Hosoda Miyuu
3rd Generation
Onedari Champagne (MIN.MIN.MIN): (Undergirls A, 12 Members)
- 1st Generation: Akita Kazue, Urano Kazumi, Kaida Juri, Kato Mami, Kouchi Masami, Chen Qu, Noro Kayo, * Hatakeyama Chisaki
- 2nd Generation: Aikawa Yuki, Akiko, Ito Mana, Natsuko
Awajijima no Tamanegi (MIN.MIN.MIN): (Undergirls B, 16 Members)
- 1st Generation: Imayoshi Megumi, Okouchi Misa, Tezuka Machiko, Nachu, Nishikunihara Reiko, Mitsui Hiromi
- 2nd Generation: Oyama Aimi, Hosoda Miyuu, Matsushima Rumi
- 3rd Generation: Kojo Seara, Komatani Hitomi, Shinahama Saemi, Siyeon, Tojima Hana, Hayakawa Sayo, miray
4th Generation
Yaritagariya-san (Kudokinagara Azabu Juuban duet with Mino Monta): (Undergirls Team G, 12 Members)
- 1st Generation: Kouchi Masami, Okouchi Misa, Tezuka Machiko
- 2nd Generation: Aikawa Yuki, Fujikoso Yumi, Fukuda Akane, Hosoda Miyuu, Matsushima Rumi, Natsuko
- 3rd Generation: miray, Siyeon, Tojima Hana
Kamujatan Bojou (Kudokinagara Azabu Juuban duet with Mino Monta): (Undergirls B, 10 Members)
- 1st Generation: Chen Qu, Hatakeyama Chisaki, Kondo Sayaka, Nachu
- 2nd Generation: Akiko, Kimoto Yuki, Takahashi Yui, Tsuda Marina
- 3rd Generation: Komatani Hitomi, Shinahama Saemi
Kashaasa de Jihaku suru (Kudokinagara Azabu Juuban duet with Mino Monta): (Undergirls B, 9 Members)
- 1st Generation: Imayoshi Megumi, Kaida Juri, Kato Mami, Mitsui Hiromi, Nishikunihara Reiko, Umeda Haruka
- 2nd Generation: Ito Mana, Oyama Aimi
- 3rd Generation: Kojo Seara
5th Generation
Kurikuri (Makeoshimi Congratulation): (Undergirls A, 12 Members)
- 1st Generation: Kondo Sayaka, Chen Qu, Hatakeyama Chisaki
- 2nd Generation: Aikawa Yuki, Akiko, Ito Mana, KONAN, Takahashi Yui, Tsuda Marina, Fukuda Akane
- 3rd Generation: Kojo Seara, Tojima Hana
Ue Kara Natsuko (Makeoshimi Congratulation): (Undergirls B, 15 Members)
- 1st Generation: Imayoshi Megumi, Okouchi Misa, Kaida Juri, Tezuka Machiko, Nachu, Nishikunihara Reiko, Mitsui Hiromi
- 2nd Generation: Oyama Aimi, Natsuko, Hosoda Miyuu, Matsushima Rumi
- 3rd Generation: Komatani Hitomi, Shinahama Saemi, Siyeon, miray
Undergirls Generations (NMB48)
1st Generation
Baatari GO! (Junjou U-19): (26 Members)
- Team N: Shinohara Kanna · Yamaguchi Yuuki
- Team M: Ota Riona · Kawakami Rena · Kodakari Yuuka · Takano Yui · Tanigawa Airi · Hikawa Ayame · Fujita Runa · * Mita Mao · Murakami Ayaka · Murase Sae · Yamagishi Natsumi
- Kenkyuusei: Azuma Yuki · Ishida Yuumi · Uno Mizuki · Okada Risako · Okita Ayaka · Koga Narumi · Koyanagi Arisa · Sato Sorai · Nakagawa Hiromi · Nishizawa Rurina · Hayashi Momoka · Hara Mizuki · Yamamoto Hitomi
2nd Generation
- Team N: Kishino Rika, Kinoshita Haruna, Shinohara Kanna, Matsuda Shiori, Yamaguchi Yuuki
- Team M: Ota Riona, Kawakami Rena, Kodakari Yuuka, Takano Yui, Hikawa Ayame, Fujita Runa, Mita Mao, Murase Sae, Yamagishi Natsumi
- Kenkyuusei: Azuma Yuki, Ishida Yuumi, Uno Mizuki, Okita Ayaka, Koga Narumi, Koyanagi Arisa, Sato Sorai, Nakagawa Hiromi, Nishizawa Rurina, Hayashi Momoka, Hara Mizuki, Yamamoto Hitomi, Akazawa Hono, Ishizuka Akari, Ijiri Anna, Ueda Mirei, Umehara Mako, Oota Yuuri, Katou Yuuka, Kamieda Emika, Kusaka Konomi, Kushiro Rina, Kurokawa Hazuki, Kono Saki, Kobayashi Rikako, Sasaki Nanami, Sugimoto Kamo, Takayama Riko, Togo Sora, Hisada Riko, Miura Arisa, Muro Kanako, Yabushita Syu, Yamauchi Tsubasa
3rd Generation
- Team M: Ota Riona, Kawakami Rena, Kinoshita Momoka, Fujita Runa
- Kenkyuusei: Ishida Yuumi, Uno Mizuki, Koga Narumi, Koyanagi Arisa, Sato Sorai, Nakagawa Hiromi, Nishizawa Rurina, Hayashi Momoka, Ishizuka Akari, Ijiri Anna, Ueda Mirei, Umehara Mako, Oota Yuuri, Kamieda Emika, Kusaka Konomi, Kushiro Rina, Kurokawa Hazuki, Kono Saki, Kobayashi Rikako, Sugimoto Kamo, Takayama Riko, Togo Sora, Hisada Riko, Miura Arisa, Muro Kanako, Yamauchi Tsubasa
Undergirls Generations (Nogizaka46)
1st Generation
Hidari Mune no Yuuki (Guru Guru Curtain):
- 1st Generation: Yamato Rina, Iwase Yumiko, Saito Chiharu, Miyazawa Seira, Higuchi Hina, Andou Mikumo, Ito Marika, Kashiwa Yukina, Fukagawa Mai, Wakatsuki Yumi, Ito Nene, Nagashima Seira, Nakamoto Himeka, Wada Maaya, Kawai Hina, Eto Misa, Hatanaka Seira
2nd Generation
Ookami ni Kuchibue wo (Oide, Shampoo):
- 1st Generation: Ando Mikumo, Eto Misa, Fukagawa Mai, Higuchi Hina, Ito Marika, Ito Nene, Kashiwa Yukina, Kawai Hina, Kawamura Mahiro, Nagashima Seira, Nakamoto Himeka, Noujou Ami, Saito Asuka, Saito Chiharu, Wada Maaya, Wakatsuki Yumi, Yamato Rina
3rd Generation
Namida ga Mada Kanashimi datta Koro (Hashire! Bicycle):
- 1st Generation: Ando Mikumo, Eto Misa, Hatanaka Seira, Higuchi Hina, Ito Nene, Iwase Yumiko, Kashiwa Yukina, Kawago Hina, Kawamura Mahiro, Miyazawa Seira, Nagashima Seira, Nakamoto Himeka, Noujou Ami, Saito Asuka, Saito Chiharu, Wada Maaya, Yamato Rina
4th Generation
Haru no Melody (Seifuku no Mannequin):
- 1st Generation: Ando Mikumo, Eto Misa, Ito Nene, Ito Marika, Kawago Hina, Kawamura Mahiro, Saito Chiharu, Saito Yuri, Nagashima Seira, Nakada Kana, Nakamoto Himeka, Miyazawa Seira, Hatanaka Seira, Higuchi Hina, Wada Maaya, Yamato Rina
5th Generation
13hi no Kinyobi (Kimi no Na wa Kibou):
- 1st Generation: Ando Mikumo, Ichiki Rena, Ito Marika, Eto Misa, Kashiwa Yukina, Kawago Hina, Kawamura Mahiro, Saito Asuka, Saito Chiharu, Saito Yuri, Nakamoto Himeka, Noujo Ami, Hatanaka Seira, Higuchi Hina, Miyazawa Seira, Yamato Rina, Wada Maaya
6th Generation
- 1st Generation: Eto Misa, Ichiki Rena, Ito Nene, Kashiwa Yukina, Kawago Hina, Kawamura Mahiro, Saito Asuka, Saito Chiharu, Nakamoto Himeka, Nagashima Seira, Noujo Ami, Miyazawa Seira, Hatanaka Seira, Higuchi Hina, Wada Maaya, Yamato Rina
Undergirls & Theater Girls as Popularity level used by the Fandom
The Undergirls are usually given most of the spotlight after the Senbatsu in a single release, making the other Single-exclusive group (the Theater Girls) feel as the "least important" group of girls for the manager.
The Theater Girls were introduced in RIVER, a single that was promoted as "first single ever where all the 48 girls of the group take part". with Senbatsu still being "the most important" selection of girls, the Undergirls were used once again and a new group named the Theater Girls was introduced. Unlike the Undergirls, the Theater Girls didn't get a new original song and got to cover an AKB48 Stage Song instead. The original Theater Girls music video was filmed in the AKB48 Theater as a "performance music clip", instead of an "original PV" like the Undergirls and Senbatsu get.
Since the Type-A and Type-B releases were included in AKB48 Singles, the Theater Girls started to take part of only one of the editions, compared to the Undergirls that appear in both as the main b-side of the single. Not only are Theater girls songs only one one edition, but the Theater Girls do not necessarily appear in all the singles in the first place. For Senbatsu election singles, Theater girls are not present.
In the fandom, fans will often classify girls as "Senbatsu" "Undergirl" or "Theater Girl", referring more to popularity-level instead of how often they appear in Senbatsu, Undergirls, or Theater Girls. Often, when AKB48 management decides to "push" a new member, they will have the girl go directly to the Undergirls lineup in order to promote her more to the fans.