May 28, 1998 (age 14)
Also known as
Higashihiroshima, Hiroshima, Japan
Sayashi Riho was enrolled in Actor's School Hiroshima, a school whose studies concentrates more on singing, dancing and acting lessons to prepare their students for an future actor career.
The ninth generation members debuted in Morning Musume January 2nd, at the Hello! Project 2011 Winter ~Kangei Shinsen Matsuri~ A gana Live concert.
Sayashi's debut single in Morning Musume is titled "Maji Desu ka Ska!".
On March 27th, it was announced Sayashi would be replacing Mano Erina for the radio show "Mano Deli", renaming it "Riho Deli".
On July 29, it was revealed Sayashi will be out of events for at least six weeks to rest due to ischium nerve pain on her right side.
On April 18, it was announced that Tanaka Reina and Morning Musume's 9th & 10th Generation members will star in a new stage play titled Stacey’s Shoujo Saisatsu Kageki. The musical will run from June 6-12.
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 26, a solo PV of Sayashi singing "Furusato" was featured on Hello! Project Station.
- Name: Sayashi Riho (鞘師里保)
- Nickname: Yasshii, Big eater, RihoRiho, Sayashi
- Birthday: May 28, 1998 (14 years old)
- Birthplace: Higashi, Hiroshima, Japan
- Blood type: AB
- Height: 155 cm (5'1")
- Hello! Project Status:
- 2011-01-02: Member
- 2011-01-02: Morning Musume Member
- UP-FRONT PROMOTION Status:
- 2011-01-02: Member
- Years in Morning Musume: 2 Years
- Morning Musume Color: Red
- Charm Point: Eyes
- Weak Point: Really nervous doing presentations
- Strong Point: Handles animals well
- Favourite Animal: Tiger
- Special Skill: Penmanship, massage, calligraphy
- Hobbies: Listening to music, dancing, sleeping, drawing
- Favorite Foods: Peaches, Chinese noodles, chicken wings, cereals, sushi, oysters
- Least Favorite Foods: Carrots, shrimp, eggs
- Favorite Colors: Pink, white, black, green and blue
- Favorite Sport: Baseball
- Favorite Movie: Finding Nemo
- Quality you have that she won't lose to anyone: Her love for her family
- Motto: "If you can sing you can rock the stage", "Shuwa Shuwa PON!"
- The best thing about your hometown: The oysters are delicious in the winter
- Looks up to: Takahashi Ai, Suzuki Airi
- Favorite Morning Musume Singles: "Kimagure Princess", "Maji Desu ka Ska!"
- Other Favorite Song: "Gangnam Style" by Psy, "Zurui Onna" by Sharam Q,
- Hello! Project groups:
Singles Participated InEdit
- Maji Desu ka Ska! (Debut)
- Only you
- Kono Chikyuu no Heiwa wo Honki de Negatterun da yo!/Kare to Issho ni Omise ga Shitai!
- Busu ni Naranai Tetsugaku (Hello! Project Mobekimasu)
- Pyocopyoco Ultra
- Ren'ai Hunter
- One•Two•Three/The Matenrou Show
- Wakuteka Take a chance
- Help me!!
- Brainstorming/Kimi Sae Ireba Nani mo Iranai
- [2011.08.31] Sayashi Riho ~Greeting~
- [2012.03.09] RIHO (“e-Hello!” DVD)
- [2012.09.26] HyaaHo~i♪( ´θ｀)ノ
- [2013.03.28] snowdrop (“e-Hello!” DVD)
- [2011.9.28] Alo-Hello! 5 Morning Musume DVD (アロハロ! 5 モーニング娘。DVD)
- [2012.12.26] Alo-Hello! 6 Morning Musume DVD (アロハロ！6 モーニング娘。DVD)
- [2013.01.16] Alo-Hello! Morning Musume 9th ・10th Generation DVD (アロハロ！ モーニング娘。9・10期 DVD)
- [2012.07.27] Morning Musume 9ki Member Event ~Iwai Tanjoubi! Kanpai wa, Shuwa Shuwa Pon! HyaaHo~i! ♪( ´θ｀)ノ~ (モーニング娘。９期メンバーイベント～祝・誕生日！乾杯は、しゅわしゅわぽん！ひゃっっほーい♪( ´θ｀)ノ～)
-  Mosuma FC Event ~Gachi☆Kira~ (モースマ。FCイベント～ガチ☆キラ～)
- [2013.01.28] Kudo Haruka Birthday Event ~Chuugakusei NIGHT!!~ (工藤遥バースデーイベント 〜中学生NIGHT!!〜)
-  Sayashi Riho Birthday Event ~Sayashi no Koto, Itsu Iwau no? Ima Desho!!~ (鞘師理保バースデーイベント〜鞘師のこと、いつ祝うの？今でしょ！！〜)
- [2012.09.10] Morning Musume Kyuukies & Juukies 1st official Photo Book (モーニング娘。9・10期 1st official Photo Book)
- [2012.12.16] Alo-Hello! Morning Musume 09 Kyuukies (アロハロ！モーニング娘。９期写真集)
- [2011.11.11] Alo-Hello! Morning Musume 2011 (アロハロ！モーニング娘。2011) (Riho version)
- [2012.02.24] 9+10=∞ (鞘師里保/佐藤優樹) (with Sato Masaki)
- [2012.12.27] Alo-Hello! Morning Musume 2012 (アロハロ！モーニング娘。2012) (Riho version)
- [2013.03.08] Alo-Hello! Morning Musume Qki (アロハロ！モーニング娘。Q期) (Riho version)
- [2013.04.09] Morning Musume Alo-Hello Qki (モーニング娘。アロハロ！モーニング娘。Q期)
- [2013.04.30] Aka to Ao no battle (赤と青のbattle) (with Ishida Ayumi)
- [2012.06.14] Weekly ASCII 2012 6/28 Issue
- [2012.08.06] Top Yell 2012 September Issue
- [2012.10.17] Weekly Famitsu Taiwan Vol.408
- [2012.10.20] Photo Technique Digital 2012 November Issue
Featured on the coverEdit
- [2011.04.22] Hello! Channel Vol.4 (with Takahashi Ai, Fukumura Mizuki, Ikuta Erina, & Suzuki Kanon)
- [2011.09.02] UTB+ Vol.4 (with Suzuki Airi & Maeda Yuuka)
- [2011.11.14] CD&DL Data (with Tanaka Reina, Mano Erina, Yajima Maimi, Tsugunaga Momoko, Suzuki Airi, Wada Ayaka, & Tamura Meimi)
- [2012.04.27] B.L.T. U-17 Vol.22 (with Fukumura Mizuki, Ikuta Erina, & Suzuki Kanon)
- [2012.09.24] UTB+ vol.10 (with Michishige Sayumi, Mano Erina, Yajima Maimi, Tsugunaga Momoko, Suzuki Airi, Wada Ayaka, & Ishida Ayumi)
- [2012.10.25] Hello! Channel Vol.10 (with Michishige Sayumi & Ishida Ayumi)
- [2012.10.26] Idol graph photogenic (with Suzuki Airi, Matsui Jurina, Maeshima Ami, Sekine Yuna, & RIO)
- [2012.11.22] Hello! Channel Best Selection (with Suzuki Airi)
- [2013.04.06] Top Yell (with Michishige Sayumi, Tanaka Reina, Tsugunaga Momoko, Okai Chisato, Iikubo Haruna, Fukuda Kanon, Hagiwara Mai, Fukumura Mizuki, Ishida Ayumi, Oda Sakura)
- [2013.04.11] Anican R YanYan Vol.5 (Back cover) (with Michishige Sayumi, Iikubo Haruna, Suzuki Kanon, & Sato Masaki)
- [2013.04.27] Confetti Vol.102 (with Iikubo Haruna, Fukumura Mizuki, Ishida Ayumi, & Kudo Haruka)
-  Sharehouse (シェアハウス)
-  Bijo Gaku (美女学)
- [2011–2012] Hello Pro! TIME (ハロプロ！ＴＩＭＥ)
-  Hello! SATOYAMA Life (ハロー! SATOYAMA ライフ)
-  Suugaku♥Joshi Gakuen (数学♥女子学園)
-  Fashionable (ファッショナブル)
-  Reborn ~Inochi no Audition~ (リボーン～命のオーディション～) (as William Shakespeare)
-  Stacey's Shoujo Saisatsu Kageki (ステーシーズ 少女再殺歌劇)
-  Gogakuyuu (ごがくゆう)
-  UstreaMusume
-  Michishige Sayumi no "Mobekimasutte Nani??" (道重さゆみの『モベキマスってなに？？』)
- [2011–] RIHO-DELI
- [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～)
- Sayashi has an older sister, a younger sister and two older brothers.
- Instead of going to a "normal" school, Sayashi visited Actor's School Hiroshima receiving singing, dancing and acting lessons since the age of 6.
- She performed in several concerts organized by Actor's School and therefore had a mentionable fanbase prior to joining Morning Musume.
- She has had a least one solo line since her debut single, Maji Desu ka Ska!
- She, along with Suzuki Kanon are the first members of Morning Musume that were born after the group's formation in 1997.
- She can paint without looking.
- She has a collection of art at home.
- At school, her favorite class is lunch.
- Sayashi was the only 9th generation member to recieve solo lines in "Only You", "Kono Chikyuu no Heiwa wo Honki de Negatterun da yo!/Kare to Issho ni Omise ga Shitai!", "Ren'ai Hunter", and "The Matenrou Show".
- She has a scar on her chin.
- She moved to Tokyo from Hiroshima for Morning Musume.
- Her mother speaks in Kansai dialect.
- She is not good at waking up in the morning.
- When asked what aspect of her makeup she is most particular about, she replied that it was her eyeliner, it has to go a little past her eye.
- She is quick at remembering dances.
- Before she joined Morning Musume, she was in the stage play "Fashionable" with the group.
- Is one of three Morning Musume members to have the blood type AB, the others being Kago Ai and Kamei Eri.
- She shares the same birthday as Kenshuusei member Sasaki Rikako and former Coconuts Musume member Mika Todd.
- When asked the question "If you could become another Hello! Project member, who would you be?", Takahashi Ai said she would like to be Sayashi becuase she wants to be called cute no matter what she does, and Niigaki Risa said that she would like to be Sayashi (or Suzuki Kanon) because she wants to feel what it is like to be young again.
- She can bend both her thumbs all the way back.
- Outside of Morning Musume, she said she would be a nail artist.
- She wants to appear in a cider commercial.
- She shares the position of the lead vocalist together with Tanaka Reina.
- She was ranked 6th on Beautiful Idol General Election 2012, Middle School Group.
- She stated that her rival is herself.
- Her favorite animal is hamster.
- When she moved to Tokyo, she was touched when former Morning Musume member Niigaki Risa texted her not to hesitate asking for help if she feels lonely.
- Her favorite English word is "example."
- She's the shortest member of 9th generation