Junjou U-19

Junjou U-19 (純情U-19) é o 3º single lançado pelo NMB48, lançado em 8 de fevereiro de 2012. Foi lançado em 4 versões (Type A, Type B, Type C e Theater Edition), e foi o primeiro a incluir as Undergirls.

Type A:

1. Junjou U-19 (純情U-19)
2. Baatari GO! (場当たりGO!) (Undergirls)
3. Doryoku no Rei (努力の雫) (Shirogumi)
4. Junjou U-19 off vocal ver. (純情U-19 off vocal ver.)
5. Baatari GO! off vocal ver. (場当たりGO! off vocal ver.)
6. Doryoku no Rei off vocal ver. (努力の雫 off vocal ver.)

Type B:

1. Junjou U-19 (純情U-19)
2. Baatari GO! (場当たりGO!) (Undergirls)
3. Migi e Magare (右へ曲がれ) (Akagumi)
4. Junjou U-19 off vocal ver. (純情U-19 off vocal ver.)
5. Baatari GO! off vocal ver. (場当たりGO! off vocal ver.)
6. Migi e Magare off vocal ver. (右へ曲がれ off vocal ver.)

Type C:

1. Junjou U-19 (純情U-19)
2. Baatari GO! (場当たりGO!) (Undergirls)
3. Renai no Speed (恋愛のスピード) (NMBSeven)
4. Junjou U-19 off vocal ver. (純情U-19 off vocal ver.)
5. Baatari GO! off vocal ver. (場当たりGO! off vocal ver.)
6. Doryoku no Rei off vocal ver. (努力の雫 off vocal ver.)

Theater Edition:

1. Junjou U-19 (純情U-19)
2. Doryoku no Rei (努力の雫) (Shirogumi)
3. Migi e Magare (右へ曲がれ) (Akagumi)
4. Baatari GO! (場当たりGO!) (Undergirls)
5. Jungle Gym (ジャングルジム) (Yamamoto Sayaka)
6. Junjou U-19 off vocal ver. (純情U-19 off vocal ver.) 
7. Doryoku no Rei off vocal ver. (努力の雫 off vocal ver.) 
8. Migi e Magare off vocal ver. (右へ曲がれ off vocal ver.)
9. Baatari GO! off vocal ver. (場当たりGO! off vocal ver.)

[Junjou U-19] Senbatsu // Review

Team N: Yamamoto Sayaka, Watanabe Miyuki, Yamada Nana, Fukumoto Aina, Ogasawara Mayu, Jonishi Kei, Shiroma Miru, Kadowaki Kanako, Kondo Rina, Kotani Riho, Kinoshita Haruna, Kishino Rika
Kenkyuusei 1st Generation: Kinoshita Momoka
Kenkyuusei 2nd Generation: Jo Eriko, Yagura Fuuko, Yogi Keira

[Doryoku no Rei] Shirogumi (白組) // Review

Team N: Yamamoto Sayaka, Yamada Nana, Ogasawara Mayu, Kadowaki Kanako, Kinoshita Haruna, Kishino Rika, Shinohara Kanna
Kenkyuusei 1st Generation: Yamagishi Natsumi, Okita Ayaka
Kenkyuusei 2nd Generation: Jo Eriko, Yogi Keira, Kodakari Yuka

[Migi he Magare] Akagumi (紅組) // Review
 
Team N: Watanabe Miyuki, Fukumoto Aina, Jonishi Kei, Shiroma Miru, Kondo Rina, Kotani Riho, Yamaguchi Yuki
Kenkyuusei 1st Generation: Kinoshita Momoka, Hikawa Ayame
Kenkyuusei 2nd Generation: Yagura Fuuko, Murakami Ayaka, Tanigawa Airi

[Renai no Speed] NMB Seven

Team N: Yamamoto Sayaka, Watanabe Miyuki, Yamada Nana, Ogasawara Mayu, Fukumoto Aina, Jonishi Kei
Kenkyuusei 2nd Generation: Jo Eriko

[Baatari GO!] Undergirls

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