|Birthdate||July 23, 1995|
|Current Age||27 Years Old|
|Social Networks||Official Website / Official Fanclub / Ameblo / Instagram / TikTok / Twitter / YouTube|
|Idol Career Info|
|Former Team||1st Generation|
|Debuted||June 2011 / 1st Generation|
- Lightstick colors: Red and Red
- Audition Song: O2 (Fukuhara Miho, featuring AI)
- Before entering Nogizaka46, she was a member of Up Front Kansai agency after winning the 2008 UFA Kansai audition.
- During her self introduction for a performance of 16nin no Principal, she sang a song that she had written and composed herself.
- She was considered by other members to be the best singer and dancer in Nogizaka46.
- She learned to play guitar on a web series for Young Guitar Magazine.
- She was known to be a hard worker.
- She often subbed when her fellow members were absent during performances.
- She graduated on March 31, 2018 (Anouncement on February 2, 2018).
- She was a member of multi-national K-Pop group Z-Girls from 2019 to 2021.
- In July 2021, she made her debut as a solo singer, releasing under the name 真洋(mahiro).
- Keishasuru (Toumei na Iro)
- Jiyuu no Kanata (Toumei na Iro)
- Yokubo no Reincarnation (Sorezore no Isu)
- Kimi ga Aoi de Kureta (Umaretekara Hajimete Mita Yume)
- Settei Ondo (Umaretekara Hajimete Mita Yume)
- Unubore Beach (Boku Dake no Kimi ~Under Super Best~)
- So no Jo (Boku Dake no Kimi ~Under Super Best~)
- Dare Yori soba ni Itai (Boku Dake no Kimi ~Under Super Best~)
- Ramen Walker TV 2 (ラーメンWalker TV 2)
Kawamura Mahiro after her graduation (ZGIRLS)
Kawamura Mahiro (2016 - Hadashi de Summer)
Kawamura Mahiro (2016 - Harujion ga Sakukoro)
Kawamura Mahiro (2015 - Ima, Hanashitai Dareka ga Iru)
Kawamura Mahiro (2015 - Taiyou Knock)
Kawamura Mahiro (2015 - Inochi wa Utsukushii)
Kawamura Mahiro (2014 - Nandome no Aozora ka?)
Kawamura Mahiro (2014 - Natsu no Free & Easy)
Kawamura Mahiro (2014 - Kidzuitara Kataomoi)
Kawamura Mahiro (2013 - Barrette)
Kawamura Mahiro (2013 - Girl's Rule)
Kawamura Mahiro (2013 - Kimi no Na wa Kibou)
Kawamura Mahiro (2012 - Seifuku no Mannequin)
Kawamura Mahiro (2012 - Hashire! Bicycle)
Kawamura Mahiro (2012 - Oide Shampoo)
Kawamura Mahiro (2012 - Guru Guru Curtain)
Kawamura Mahiro (2011 - Nogizakatte, Doko?)
Kawamura Mahiro (2011)