|Birthdate||May 7, 1999|
|Occupation||Idol, Singer, Actress, Model|
|Agency||UP-FRONT AGENCY (2011-2012)|
UP-FRONT PROMOTION (2012-present)
|Associated Acts||Morning Musume, Harvest, Jurin, Sato no Akari, Hello! Project Mobekimasu|
|“||I think I’m not good a reading the situation. I don’t like reading to begin with anyway... but is an Idol who’s good at those things really that interesting?||”|
–Sato Masaki, August 2013
Sato Masaki was born on May 7, 1999 in Hokkaido, Japan to a couple whose names are undisclosed.
On September 29, Sato was selected from Morning Musume's 10th Generation audition to join the group along with Iikubo Haruna, Ishida Ayumi, and former Hello Pro Kenshuusei member Kudo Haruka. The tenth generation made their official presentation on the same day they were announced as new members in the "Morning Musume Concert Tour 2011 Aki Ai Believe ~Takahashi Ai Graduation Memory Special~" concert, and they participated in a performance of the song "Tomo". They also participated in the end of the song "Namidacchi".
During the last few days of her first concert tour, she cut her hair short.
On May 13, information was released about an event for the 9th and 10th generation members of Morning Musume as well as S/mileage’s 2nd generation members, titled Mosuma FC Event ~Gachi☆Kira~, was set to take place on June 15th, 18th, and 20th at Yokohama Blitz.
On March 13, it was announced that Sato would be a member of a newly formed SATOYAMA movement unit called Sato no Akari.
On May 7, Sato celebrated her 15th birthday. This special event was called Morning Musume '14 ~Sato Masaki Birthday Event 2014~. It featured two performances in Tokyo.
She has two younger sisters.
On January 11, it was released that Sato Masaki, who has been resting since December 31st due to a high fever, has been diagnosed with left neck cervical lymphadenitis after a detailed examination. She was absent for all events between December 31st through January 17th.
When she auditioned for Morning Musume, Sato was a 6th grade elementary school student. As of April 2014, she is currently attending her third year of middle school.
The following list are notable friendships Sato Masaki has acquired:
- Kudo Haruka: One of her best friends within Morning Musume is Kudo Haruka.
- Oda Sakura: Sato gets along well with Morning Musume member Oda Sakura.
- Michishige Sayumi: Sato gets along well with senior Morning Musume member Michishige Sayumi.
- Tanaka Reina: Sato gets along well with former Morning Musume member Tanaka Reina.
- Hagiwara Mai: She gets along well with ℃-ute member Hagiwara Mai.
- Okai Chisato: She also gets along well with ℃-ute member Okai Chisato.
Sato's given name, "Masaki", means great timber tree (優樹; masaki). It's a common masculine and less common feminine Japanese given name.
Here is a list of nicknames that was used to refer to Sato Masaki:
- Maa-chan (まーちゃん): Official nickname, given her since joining Morning Musume. Used by members and fans.
- Masaki (まさき): Second official nickname, given her since joining Morning Musume. Used by members and fans.
- MASA☆KISSU (まさ☆キス): Nickname for Sato Masaki, compounded of MASA (Masaki) and KISSU (Kiss).
- Name: Sato Masaki (佐藤優樹)
- Nicknames: Maa-chan (まーちゃん), Masaki (まさき), MASA☆KISS (まさ☆キス), Masa (まさ), Masaking (まさキング)
- Birthdate: May 7, 1999 (age 15)
- Birthplace: Hokkaido, Japan
- Bloodtype: A
- Height: 153cm
- Hello! Project Status:
- 2011-09-29: Member
- 2011-09-29: Morning Musume Member
- UP-FRONT AGENCY Status:
- 2011-09-29: Member
- 2012-10-01: Transferred to UP-FRONT PROMOTION (as part of Morning Musume)
- UP-FRONT PROMOTION Status:
- 2012-10-01: Member
- Years in Morning Musume: 3 Years
- Official Kaomoji: 川* ^_〉^)
- Morning Musume Color:
- Emerald Green (2011-Present)
- Audition Song: "Maji Desu ka Ska!" by Morning Musume
- Hello! Project groups:
- Hobbies: Playing drums, riding horses.
- Special Skills: Ballet and playing piano.
- Favorite Food: Soba, udon, plum sheets.
- Favorite Color: Yellow and green.
- Favorite Place: Disneyland.
- Philosophy: Being Smiley
- Charm Point: Eyelashes
- Motto: "Don't be noisy"
- Favorite Word: "Deshou"
- Favorite English phrase: "Thank you!"
- Favorite Morning Musume song: Maji Desu ka Ska!, Fantasy ga Hajimaru, Iroppoi Jirettai
- Favorite Song in the Past: Butterfly
- Current Favorite Songs: Saraba, Itoshiki Kanashimitachi yo, Kokuhaku, Robo Kiss
- Looks up to: Takahashi Ai, Niigaki Risa
- See Also: Sato Masaki Discography Featured in
- [2012.07.11] Greeting ~Sato Masaki~ (“e-Hello!” DVD)
- [2012.02.24] 9+10=∞ (鞘師里保/佐藤優樹) (with Sayashi Riho)
- [2013.01.29] Alo-Hello! Morning Musume 2012 (アロハロ！モーニング娘。2012) (Masaki version)
- [2013.04.02] Alo-Hello! Morning Musume Tenki Gumi (アロハロ！モーニング娘。天気組) (Masaki version)
- [2013.04.09] Alo-Hello! Morning Musume Tenki Gumi (アロハロ！モーニング娘。天気組)
- [2012.09.10] Morning Musume Kyuukies & Juukies 1st official Photo Book (モーニング娘。9・10期 1st official Photo Book)
- [2013.01.15] Alo-Hello! Morning Musume 10ki Shashinshuu (アロハロ！モーニング娘。１０期写真集) (Morning Musume Tenkigumi)
- [2013.04.20] Michishige ☆ Photo SOUL
- [2013.12.01] Morning Musume Tenki Gumi BOOK (モーニング娘。天気組BOOK)
- [2014.10.16] Maa-chan & Kudo no Hello! Pro Senpai Tanbou-dan (まーちゃんくどぅーのハロプロ先輩探訪団) (with Kudo Haruka)
- [2013.10.24] Weekly Famitsu Taiwan Vol.457
Featured on the coverEdit
- [2011.12.28] Hello! Channel Vol.7 (Iikubo Haruna, Fukumura Mizuki, Ishida Ayumi, Ikuta Erina, Sayashi Riho, Suzuki Kanon, & Kudo Haruka)
- [2012.04.27] B.L.T U-17 Vol.22 (Back cover) (with Iikubo Haruna, Ishida Ayumi, & Kudo Haruka)
- [2013.01.23] Anikan R Yanyan (Back cover) (Iikubo Haruna, Fukumura Mizuki, Ishida Ayumi, Ikuta Erina, Sayashi Riho, Suzuki Kanon, Oda Sakura, & Kudo Haruka)
- [2013.04.11] Anikan R Yanyan Vol.5 (Back cover) (with Michishige Sayumi, Iikubo Haruna, Sayashi Riho, & Suzuki Kanon)
- [2013.08.25] bounce issue 358 (Back cover) (with Iikubo Haruna, Ikuta Erina, Suzuki Kanon, & Kudo Haruka)
- [2013.09.11] Anikan R Yanyan magazine Vol.9 (Fukumura Mizuki, Ishida Ayumi, Ikuta Erina, & Oda Sakura)
- [2014.01.29] Anikan R Yanyan Vol.13 (Back cover) (with Fukumura Mizuki, Sayashi Riho, Suzuki Kanon, & Kudo Haruka)
- [2014.04.30] Cool-up Girls Vol.1 (with Kudou Haruka)
- [2011-2012] Hello Pro! TIME (ハロプロ！ＴＩＭＥ)
- [2012-2013] Hello! SATOYAMA Life (ハロー！ＳＡＴＯＹＡＭＡライフ)
- [2014-] The Girls Live
-  Suugaku♥Joshi Gakuen (数学♥女子学園)
-  Stacey's Shoujo Saisatsu Kageki
-  LILIUM -Lilium Shoujo Junketsu Kageki- (LILIUM －リリウム 少女純潔歌劇－)
-  Michishige Sayumi no "Mobekimasutte Nani??" (道重さゆみの『モベキマスってなに？？』)
-  Guest, Maachan (ゲスト、まぁちゃん。)
- [2013-] Hello! Project Station (ハロ！ステ)
- [2012–] Morning Musume no Morning Jogakuin ~Houkago Meeting~ (モーニング娘。のモーニング女学院～放課後ミーティング～)
- She was voted 6th favorite member in the 2012 "Hello! Project Music Awards" event. 
- She was voted 5th favorite member in the 2013 "Hello! Project Music Awards" event. 
- In Radio bangumi magazine's 7th edition "favorite DJ ranking", readers voted for her as the #1 ranked DJ on AM radio in 2014. 
- She is the sixth Morning Musume member to come from the Hokkaido prefecture.
- She has a very cheerful character.
- She is often tired.
- Her mom is a huge fan of Morning Musume.
- She blew a kiss during her second time on stage and called it MasaKiss.
- She is the only 10th generation member that has not had past experience in the entertainment industry.
- She, Fukumura Mizuki and Nonaka Miki are the only three Morning Musume members to be left handed.
- Her rivals are Ishida Ayumi and Oda Sakura.
- She and Suzuki Kanon are known for having perfect pitches when it comes to recognising notes played on the piano.
- She spoke English until she was five years old, when she began kindergarten, and had to start using Japanese.
- She grew up watching Disney Channel shows in English, and still watches them (despite no longer understanding the language).
- She has the same birthday as 5th generation member Konno Asami, former Hello Pro Kenshuusei member Maeda Irori and current Hello Pro Kenshuusei member Danbara Ruru.
- Shares the same last name with Up Up Girls (Kari) member Sato Ayano.
- She usually forgets and stumbles on speaking lines on stage.
- She is known to be affectionate with fellow members, particularly sharing hugs with Tanaka Reina and Michishige Sayumi.
- She said on a radio show that she'd like to go and see all of America.
- Both Tsunku and Oda Sakura stated in separate interviews that she is a genius.
- She is afraid of chicks, which bears resemblance to Ishikawa Rika who is an ornithophobe.
- In elementary school, she was called Maasa a lot because of her name Masaki, and her resemblance to Sudo Maasa from Berryz Koubou.
- She has played the piano since she was two and she has said that if she were not a member of Morning Musume, she would want to be a piano teacher.
- Practiced drums starting in her third year of Elementary school, but stopped two years ago as of 2012.
- Is practiced to competition level obstacle jumping in horse back riding.
- She began ballet in 2nd grade, to help her fix her posture. When she got into Morning Musume, she had already quit.
- She is currently the only 10th generation member to get the main singing role in a single, with What is LOVE? as the single where she had the main singing role in.
- As of 2014, she has been placed in a unit every year since she joined.
- During handshake events she has been known to spray perfume on the fans.
- Has said that she wont allow any 12th gen member get the light blue color.
- On the 9th-11th gen weekly radio show, Sato talked admiringly about S/mileage member Sasaki Rikako.
- Tsunku commented on her: "She keeps acting the youngest one, but she's quite clever. She's bad at studying, but somehow she has the ability to pull through, making her a smart girl in one way. But if she sees this she'll just think she's smart, and that's kinda scary... Work hard!".
Sato Family TreeEdit