Shirogumi is a unit grouping system used in conjunction with Akagumi. They are usually used as Coupling Units to cover songs on SKE48 and NMB48 B-side Singles.
This grouping system is also used in various media such as concerts (like the AKB48 Kouhaku Utagassen 2012), and variety shows (such as AKBINGO!).
JKT48 Kenkyuusei members are currently grouped into Akagumi and Shirogumi for concert appearances.
SKE48
1!2!3!4! YOROSHIKU!
Cosmos no Kioku (28 Members)
- Team S: Oya Masana, Ono Haruka, Kuwabara Mizuki, Nakanishi Yuka, Hirata Rikako. Hiramatsu Kanako, Matsui Jurina
- Team KII: Akaeda Ririna, Ishida Anna, Uchiyama Mikoto, Kato Tomoko, Saito Makiko, Sato Mieko, Takayanagi Akane, Matsumoto Rina, Yamada Reika, Wakabayashi Tomoka
- SKE48 Kenkyuusei: Abiru Riho, Isohara Kyoka, Goto Risako, Yamada Erika, Inuzuka Asana, Kobayashi Ami, Sakai Mei, Shibata Aya, Tsuzuki Rika, Nakamura Yuka, Mizuno Honoka
Banzai Venus
Sotsugyoushiki no Wasuremono (12 Members)
- Team S: Ono Haruka, Nakanishi Yuka, Matsui Jurina
- Team KII: Abiru Riho, Kato Tomoko, Goto Risako, Sato Mieko
- Team E: Yamada Erika, Nakamura Yuka
Pareo wa Emerald
- Tokimeki no Ashiato (12 Members)
- Team S: Ono Haruka, Nakanishi Yuuka, Hirata Rikako, Matsui Jurina
- Team KII: Akaeda Ririna, Abiru Riho, Sato Mieko, Matsumoto Rina, Wakabayashi Tomoka
- Team E: Shibata Aya, Nakamura Yuka
- SKE48 Kenkyuusei: Saito Makiko
Okey-Dokey
Bazooka Hou Hassha! (12 Members)
- Team S: Nakanishi Yuuka, Hirata Rikako, Matsui Jurina
- Team KII: Abiru Riho, Ishida Anna, Sato Mieko, Matsumoto Rina, Wakabayashi Tomoka
- Team E: Isohara Kyoka, Kobayashi Ami, Shibata Aya
- SKE48 Kenkyuusei: Saito Makiko
Kataomoi Finally
Hanikami Lollipop (12 Members)
- Team S: Ono Haruka, Nakanishi Yuuka, Hirata Rikako, Matsui Jurina
- Team KII: Abiru Riho, Ishida Anna, Goto Risako, Wakabayashi Tomoka
- Team E: Isohara Kyoka, Shibata Aya, Yamada Erika
- Kenkyuusei: Saito Makiko
Aishiteraburu
Aun no Kiss (12 Members)
- Team S: Kuwabara Mizuki, Nakanishi Yuka, Hirata Rikako
- Team KII: Abiru Riho, Sato Mieko, Goto Risako
- Team E: Isohara Kyoka, Kobayashi Ami, Shibata Aya
- Kenkyuusei: Saito Makiko, Niidoi Sayaka, Matsumura Kaori
Kiss Datte Hidarikiki
Taiikukan de Choushoku wo (16 Members)
- Team S: Kuwabara Mizuki, Hiramatsu Kanako
- Team KII: Ishida Anna, Matsumoto Rina, Goto Risako, Abiru Riho, Sato Mieko, Kato Tomoko
- Team E: Isohara Kyoka, Shibata Aya, Kobayashi Ami, Saito Makiko, Uchiyama Mikoto
- Kenkyuusei: Iwanaga Tsugumi, Ego Yuna, Niidoi Sayaka
Choco no Dorei
Fuyu no Kamome (21 Members)
- Team KII: Abiru Riho, Kato Tomoko, Goto Risako, Matsumoto Rina, Yamada Reika
- Team E: Isohara Kyoka, Uchiyama Mikoto, Kobayashi Ami, Saito Makiko, Sakai Mei, Shibata Aya, Tsuzuki Rika
- Kenkyuusei: Inuzuka Asana, Iwanaga Tsugumi, Ego Yuna, Niidoi Sayaka, Hioki Miki, Futamura Haruka, Matsumura Kaori, Mizuno Honoka, Miyamae Ami
Sansei Kawaii!
Canaria Syndrome (16 Members)
- Team S: Abiru Riho, Isohara Kyoka, Goto Risako, Saito Makiko, Tsuzuki Rika
- Team KII: Uchiyama Mikoto, Kato Tomoko, Kobayashi Ami, Sato Mieko, Matsumoto Rina
- Team E: Sakai Mei, Yamada Reika
- Kenkyuusei: Inuzuka Asana, Ogino Risa, Kitano Ruka, Kitahara Yuna
NMB48
The unit appeared for the 1st time on NMB48 in Zetsumetsu Kurokami Shoujo, and is present in all singles ever since. Watanabe Miyuki is the center of Akagumi and Yamamoto Sayaka is the center of Shirogumi. It have 12 members since Oh My God!.
Zetsumetsu Kurokami Shoujo
Boku ga Maketa Natsu (8 Members)
- Team N: Ogasawara Mayu, Kishino Rika, Kinoshita Haruna, Kotani Riho, Shinohara Kanna, Fukumoto Aina, Yamada Nana, Yamamoto Sayaka
Oh My God!
Kesshou (12 Members)
- Team N: Ogasawara Mayu, Kishino Rika, Kinoshita Haruna, Kotani Riho, Shinohara Kanna, Fukumoto Aina, Yamada Nana, Yamamoto Sayaka
- Kenkyuusei: Yamagishi Natsumi, Okita Ayaka, Murakami Ayaka, Yagura Fuuko
Junjou U-19
Doryoku no Shizuku (12 Members)
- Team N: Ogasawara Mayu, Kadowaki Kanako, Kishino Rika, Kinoshita Haruna, Shinohara Kanna, Yamada Nana, Yamamoto Sayaka
- Team M: Kodakari Yuka, Jo Eriko, Yamagishi Natsumi, Yogi Keila
- Kenkyuusei: Okita Ayaka
Nagiichi
Saigo no Catharsis (12 Members)
- Team N: Kotani Riho, Kinoshita Haruna, Kondo Rina, Kishino Rika, Jonishi Kei, Shinohara Kanna, Fukumoto Aina, Yamamoto Sayaka
- Team M: Jo Eriko, Murakami Ayaka, Yagura Fuuko, Kodakari Yuka
Virginity
Bokura no Regatta (12 Members)
- Team N: Kondo Rina, Jonishi Kei, Yamada Nana, Yamamoto Sayaka
- Team M: Shimada Rena, Jo Eriko, Mita Mao, Murase Sae
- NMB48 Kenkyuusei: Azuma Yuki, Yamamoto Hitomi, Kushiro Rina, Muro Kanako
Kitagawa Kenji
Hoshizora no Caravan (12 Members)
- Team N: Ogasawara Mayu, Kondo Rina, Yamamoto Sayaka, Yoshida Akari
- Team M: Azuma Yuki, Okita Ayaka, Kinoshita Momoka, Takano Yui
- Team BII: Akazawa Hono, Yamauchi Tsubasa
- NMB48 Kenkyuusei: Hayashi Momoka
- Team Unknown: Yokoyama Yui
Bokura no Eureka
- Okuba (12 Members)
- Team N: Ogasawara Mayu, Kishino Rika, Kinoshita Haruna, Yamaguchi Yuuki, Kadowaki Kanako, Yamamoto Sayaka
- Team M: Azuma Yuki, Yamagishi Natsumi, Yamada Nana, Murakami Ayaka
- Team BII: Kusaka Konomi, Kamieda Emika
Kamonegikkusu
Doshaburi no Seishun no Naka de (12 Members)