Senbatsu:
Yamamoto Sayaka (center), Watanabe Miyuki, Kato Yuuka, Nishimura Aika, Kusaka Konomi, Kinoshita Haruna, Kishino Rika, Umeda Ayaka, Ishida Yuumi.
Date de sortie: 7 Octobre 2015.
Annonce du 13ème single à la fin de la 1ère partie du NMB48 Request Hour 2015, on ne connait uniquement la date de sortie.
Annonce du senbatsu et du clip à la fin de la performance de la team N, le 10 septembre.
Senbatsu: Yabushita Shu (center),Kotani Riho, Jonishi Kei, Yoshida Akari, Sutou Ririka, Ota Yuuri, Shiroma Miru, Tanigawa Airi, Fujie Reina, Murase Sae, Yagura Fuuko, Ichikawa Miori, Kadowaki Kanako, Shibuya Nagisa, Yabushita Shu, Naiki Kokoro, Uemura Azusa.
Révélé à la fin de la performance de la Team BII le 11 septembre.
Révélé le 13 septembre sur Youtube.
Révélé à la fin de la performance de le Team M le 12 septembre.
Révélé à la fin de la performance de le Team BII le 12 septembre.
"Must be now" Type A (Regular Edition)
CD
1. Must Be Now
2. Kataomoi Yori mo Omoide wo (片想いよりも思い出を)
3. Yume ni iro ga nai riyuu (夢に色がない理由)
4. Must Be Now (off vocal ver.)
5. Kataomoi Yori mo Omoide wo (off vocal ver.)
6. Yume ni iro ga nai riyuu (off vocal ver.)
DVD
1. Must Be Now MV
2. Must Be Now MV (Dance Version)
3. Kataomoi Yori mo Omoide wo MV
4. Yume ni iro ga nai riyuu MV
5. Riripon's way to win Mahjong (Vol. 1)
"Must be now" Type B (Regular Edition)
CD
1. Must Be Now
2. Kataomoi Yori mo Omoide wo (片想いよりも思い出を)
3. Good-Bye, Guitar
4. Must Be Now (off vocal ver.)
5. Kataomoi Yori mo Omoide wo (off vocal ver.)
6. Good-Bye, Guitar (off vocal ver.)
DVD
1. Must Be Now MV
2. Must Be Now MV (Dance Version)
3. Kataomoi Yori mo Omoide wo MV
4. Good-Bye, Guitar MV
5. Riripon's way to win Mahjong (Vol. 2)
"Must be now" Type C (Regular Edition)
CD
1. Must Be Now
2. Kataomoi Yori mo Omoide wo
3. Kufuku de renai wo suru na (空腹で恋愛をするな)
4. Must Be Now (off vocal ver.)
5. Kataomoi Yori mo Omoide wo (off vocal ver.)
6. Kufuku de renai wo suru na (off vocal ver.)
DVD
1. Must Be Now MV
2. Must Be Now MV (Dance Version)
3. Kataomoi Yori mo Omoide o MV
4. Kufuku de renai wo suru na MV
5. NMB48 feat. Yoshimoto New Comedy (Vol. 13)
"Must be now" Type A (Limited edition)
CD
1. Must Be Now
2. Kataomoi Yori mo Omoide wo (片想いよりも思い出を)
3. Yume ni iro ga nai riyuu (夢に色がない理由)
4. Must Be Now (off vocal ver.)
5. Kataomoi Yori mo Omoide wo (off vocal ver.)
6. Yume ni iro ga nai riyuu (off vocal ver.)
DVD
1. NMB48 Arena Tour 2015 ~Tooku ni Itemo~ 2015/02/25 at Nihon Budoukan
"Must be now" Type B (Limited Edition)
CD
1. Must Be Now
2. KKataomoi Yori mo Omoide wo (片想いよりも思い出を)
3. Good-Bye, Guitar
4. Must Be Now (off vocal ver.)
5. Kataomoi Yori mo Omoide wo (off vocal ver.)
6. Good-Bye, Guitar (off vocal ver.)
DVD
1. NMB48 Arena Tour 2015 ~Tooku ni Itemo~ 2015/02/26 at Nihon Budoukan
"Must be now" Type C (Limited Edition)
CD
1. Must Be Now
2. Kataomoi Yori mo Omoide wo (片想いよりも思い出を)
3. Kufuku de renai wo suru na (空腹で恋愛をするな)
4. Must Be Now (off vocal ver.)
5. Kataomoi Yori mo Omoide wo (off vocal ver.)
6. Kufuku de renai wo suru na (off vocal ver.)
DVD
1. NMB48 Kenkyuusei Stage "Souzou no Shijin" Theater Performance
"Must be now" Theater Edition
CD
1. Must Be Now
2. Kataomoi Yori mo Omoide wo (片想いよりも思い出を)
3. Orera to wa (俺らとは)
4. Must Be Now (off vocal ver.)
5. Kataomoi Yori mo Omoide wo (off vocal ver.)
6. Orera to wa (off vocal ver.)