Hirajima Natsumi was a member of AKB48's Team B.
Team History
- 2005.10.30 - Joined AKB48 as Team A member
- 2006.12 - Transferred to Team B
- 2012.02.05 - Resigned from AKB48 Team B due to scandal
AKB48 Senbatsu Election
- 1st Senbatsu Election - #26 (Undergirls)
- 2nd Senbatsu Election - #26 (Undergirls)
- 3rd Senbatsu Election - #26 (Undergirls)
- 4th Senbatsu Election - Didn't Participate
- 5th Senbatsu Election - #62 (Future Girls)
AKB48 Janken Tournaments
- 1st Janken Taikai - Round 2 (Lost to Chikano Rina)
- 2nd Janken Taikai - Round 2 (Lost to Komori Mika)
Singles Participation
AKB48 A-Sides
AKB48 B-Sides
Watarirouka Hashiritai 7 A-Sides
- Hatsukoi Dash/Aoi Mirai
- Yaruki Hanabi
- Kanpeki Gu~no ne
- Akkanbe Bashi
- Seishun no Flag
- Gyu
- Valentine Kiss
- Hetappi Wink
- Kibou Sanmyaku
Watarirouka Hashiritai 7 B-Sides
- Tenohira (Gyu)
- Gomennasai (Gyu)
- So-Mi-So-Mi-La-Si-La (Valentine Kiss)
- Hatsukoi yo, Konnichiwa (Valentine Kiss)
- Mamma, Grazie! (Hetappi Wink)
- Bikini wa Niawanai (Hetappi Wink)
- Chikatetsu no Teddy boy (Hetappi Wink)
- Fuku wo Kita Ousama (Hetappi Wink)
- Inugo wo Hanaseru Otoko no Ko) (Kibou Sanmyaku)
- Maruhi dokkiri de Ikou (Kibou Sanmyaku
Albums Participation
AKB48 Albums
- Anata ga Ite Kureta kara (SET LIST ~Greatest Songs~ Kanzen ban)
- Kimi to Niji to Taiyou to (Kamikyokutachi)
- Renai Circus (Koko ni Ita koto)
- Koko ni Ita koto (Koko ni Ita koto)
Watarirouka Hashiritai 7 Albums
- Neko Damashi (Rouka wa Hashiruna!)
- DOJI (Rouka wa Hashiruna!)
- Kossetsu Romance (Rouka wa Hashiruna!)
- Hiiragi no Tsuugakuro (Rouka wa Hashiruna!)
Units
Stage Units
- A1 (PARTY ga Hajimaru yo)
- Hoshi no Ondo
- A2 (Aitakatta)
- Nagisa no CHERRY
- A3 (Dareka no Tame ni)
- Nage Kiss de Uchi Otose!
- B1 (Seishun Girls)
- Ame no Doubutsuen
- Fushidara na Natsu
- Cinderella wa Damasarenai
- B2 (Aitakatta)
- Glass no I LOVE YOU
- Senaka Kara Dakishimete
- Rio no Kakumei
- B3 (Pajama Drive)
- Pajama Drive
- B4 (Idol no Yoake)
- Kuchi Utsushi no Chocolate
- H2 (Yume wo Shinaseru Wake ni Ikanai)
- Bye Bye Bye (Revival)
- B5 (Theater no Megami)
- Locker room boy
Concert Units
AKB48 First Concert "Aitakatta ~Hashira wa Naize!~"
Live DVD wa Derudaroukedo, Yappari Iki ni Kagiruze! AKB48 Natsu Matsuri
AKB48 Masaka, Kono Concert no Ongen wa Ryuushutsushinai yo ne?
Nenwasure Kanshasai Shuffle Sumaze, AKB! SKE mo Yoroshiku ne
"Kami Kouen Yotei" AKB48 NHK Hall Concert 2009
AKB104 Senbatsu Members Sokaku Matsuri
Yokohama Arena 2010 'AKB48 Manseki Matsuri Kibou Sanpi Ryouron'
Surprise wa Arimasen
AKB48 Kouhaku Utagassen 2011
AKB48 Super Festival at Nissan Stadium
AKB48 2013 Manatsu no Dome Tour ~Mada mada, Yaranakya Ikenai koto ga aru~
- Tokyo Dome
DVDs
Other DVDs
- [2010.10.20] Hashire Natsuyasumi (With Watarirouka Hashiritai)
Media Appearances
Movies
- X Game 2 (×ゲーム2) (2012)
Variety Shows
- AKB 1ji 59fun!
- AKBINGO!
- Shukan AKB
- AKB48 Nemousu Terebi (Season 4/8/9)
Trivia
- Hobbies: Collecting manga and books, teddy bears
- Motto: "Smile as much as possible" (できるだけ笑顔でいること)
- Saying: "Do it when you can do it" (やる時はやる)
- Good friends with: Urano Kazumi
- Future ambition: Actress
- Former leader of Watarirouka Hashiritai
- Has had the nickname Nacchan since elementary school
- Was the vice president of her student council in the first year of junior high school
- Her hairstyle for Team B 1st Stage was inspired by one of Tanaka Reina's looks at that time.
- Has said she doesn't admire any historical figures; the person she respects most is her father
- Personality quizzes from MCs during Team B 1st Stage have revealed she will be an otaku in the future, and was a princess in a past life.
- Admires Yonekura Ryoko because she's cute and can be a bad girl
- If she could be born again, she'd like to be a boy.
- Likes science, but isn't so good at maths or English
- Takes her own lunch to work, with a set given to her by Urano Kazumi
- Wants to visit a transvestite bar
- In February 2012, she and Yonezawa Rumi were involved in a scandal after personal photos of them spending time with men were leaked onto the internet, which was a violation of the group's 'no dating rule.' She was given a chance to apologize, but decided to resign from both AKB48 (along with Yonezawa) and Watarirouka Hashiritai 7.
- Began working as a gravure idol in 2015
- In July 2020, she debuted as a voice actress for the game D4DJ, voicing Seto Rika (a member of the unit MERM4ID).
- Tested positive for COVID-19 on January 12, 2022