Kumo-gumi

Kumo-gumi (雲組) is a term used by Boku ga Mitakatta Aozora to refer to the members selected for each single's main coupling track. The formation, akin to AKB48 Group's and Sakamichi Series' Under Girls, was put in place starting with their second single "Sotsugyou Made". The front members for the single are known as Aozora-gumi (青空組).

Kumo-gumi

Note: Names in bold denote a member's first time in the line-up. Names in italics denote a member's return to the line-up after being absent from the previous one.

Kimi no Tame no Uta

(Center: Akita Rian) (11 Members)

• 1st gen: Aoki Yuho, Akita Rian, Imai Yuki, Iwamoto Riko, Kinoshita Ai, Sunaga Miuna, Hagiwara Kokoka, Hasegawa Hitomi, Mochinaga Mana, Yaegashi Miisa, Yamaguchi Yuan

Namida wo Nagasou

(Center: Sugiura Eren) (12 Members)

• 1st gen: Aoki Yuho, Imai Yuki, Iwamoto Riko, Kinoshita Ai, Sugiura Eren, Sunaga Miuna, Hagiwara Kokoka, Hasegawa Hitomi, Miyakoshi Yuria, Mochinaga Mana, Yaegashi Miisa, Yamaguchi Yuan

"Hajimete Suki ni Natta Hito"

(Center: Sugiura Eren) (12 Members)

• 1st gen: Aoki Yuho, Akita Rian, Ito Yuzu, Imai Yuki, Iwamoto Riko, Kinoshita Ai, Sugiura Eren, Hagiwara Kokoka, Hasegawa Hitomi, Miyakoshi Yuria, Yaegashi Miisa, Yamaguchi Yuan

"Seishun no Tabibito yo"

(Center: Sugiura Eren) (12 Members)

• 1st gen: Aoki Yuho, Akita Rian, Ito Yuzu, Imai Yuki, Iwamoto Riko, Kinoshita Ai, Sugiura Eren, Hagiwara Kokoka, Hasegawa Hitomi, Miyakoshi Yuria, Yaegashi Miisa, Yamaguchi Yuan

"Niji wo Kakeyou"

(Center: Kudo Yua, Yaegashi Miisa) (12 Members)

• 1st gen: Aoki Yuho, Akita Rian, Ito Yuzu, Imai Yuki, Kinoshita Ai, Kudo Yua, Shiogama Nana, Hagiwara Kokoka, Hasegawa Hitomi, Miyakoshi Yuria, Yaegashi Miisa, Yamaguchi Yuan

"Cairo ni Tsuki"

(Center: Kudo Yua) (10 Members)

• 1st gen: Anno Aoi, Aoki Yuho, Akita Rian, Ito Yuzu, Imai Yuki, Kudo Yua, Hagiwara Kokoka, Miyakoshi Yuria, Mochinaga Mana, Yaegashi Miisa