
Riho Sayashi
Known for Acting · 231 credits
- Born
- 1998-05-28 (age 28)
- Place of birth
- Higashihiroshima, Hiroshima, Japan
- Also known as
- Sayashi Riho · Sayashi Riho (鞘師里保) · Rihoriho · りほりほ · Yasshii · やっしー
Biography
鞘師里保 (Sayashi Riho) is a Japanese dancer and actress. She is a former idol under Hello! Project as a 9th generation member of Morning Musume. and the SATOYAMA movement duo Peaberry. She was the most popular member out of Morning Musume.'s 2011 additions. Starting with "Only you", her second single as a member, she was pushed into becoming one of the group's central figures as a main vocalist and dancer, which led to her being named the group's "absolute ace" (絶対的エース; zettaiteki ace) by media. Sayashi graduated from Morning Musume. at the end of 2015 and took a break from Hello! Project activities to study language and dance abroad. On December 7, 2018, it was announced that her contract with UP-FRONT PROMOTION expired at the end of November 2018 and she had subsequently graduated from Hello! Project. Despite her departure, she made her return to entertainment activities on March 30, 2019 as a guest in Hello! Project's annual Hina Fes concert. In late June 2019, she began performing as a support dancer for the kawaii metal band BABYMETAL.
Known For
TV Shows (24)

I Had a Dream of That Girl
2020

My Cuteness Is About to Expire!?
2022
as Riko Moriyasu

Mecha-Mecha Iketeru!

Hello Pro! TIME

HEY!HEY!HEY! MUSIC CHAMP

Suugaku ♥ Joshi Gakuen
2012

Shabekuri 007
2008

Momo Ume
2021

Bijo Gaku
2010

Watashitte Sabasaba Shiteru kara
2023
as Shizue Kiuchi

Oshi wo Meshiagare: Koho Girl no Maroyakana Hibi
2024
as Hodaishi Yuzu

Mentsuyu Hitori Meshi
2023
as Mendo Tsuyu

Don't Stop My Beautification?!
2023
as Haraguchi Masumi

MUSIC JAPAN

Nakai Masahiro no Black Variety
2004

P-sma

Ustream Musume

Ahoyanen! Sukiyanen!

The Big Chance - Yume no Creator Audition

MUSIC DRAGON

Mujack

Agepoyo TV

Shitemiru Terebi! Kyoukun no Susume

NHK High School Course English Communication I
2022
as herself
Movies (207)

11 Rebels
2024
as Natsu

Hello! Project 2014 Summer ~YAPPARI!~
2014

Hello! Project 2013 Winter Tanjou 15 Shuunen Kinen Live 2013 Fuyu ~BRAVO!~
2013

Hello! Project 2013 COUNTDOWN PARTY 2013-2014 ~GOODBYE & HELLO!~
2013

Hello! Project 2015 Winter ~DANCE MODE!~
2015

Hello! Project 2012 Winter Hello☆Pro Tengoku ~Funky-chan~
2012

Hello! Project 2014 COUNTDOWN PARTY 2014-2015 ~GOODBYE & HELLO!~
2014

Morning Musume. Zen Single MUSIC VIDEO Blu-ray File 2011
2011

Hello! Project 2012 Winter Hello☆Pro Tengoku ~Rock-chan~
2012

Hello! Project DVD Magazine Vol.34
2013

Hello! Project DVD Magazine Vol.36
2013

Hello! Project 2011 Summer ~Nippon no Mirai wa YEAH YEAH Live~
2011

Hello! Project 2012 Summer Tanjou 15 Shuunen Kinen Live 2012 Natsu ~Ktkr (Kitakore) Natsu no Fan Matsuri!~
2012

Hello! Project 2011 Winter ~Kangei Shinsen Matsuri~ A gana Live
2011

Hello! Project DVD Magazine Vol.32
2012

Hello! Project DVD Magazine Vol.40
2014

Oboe no Nai Satsujin
2025

Hello! Project 2013 Winter Tanjou 15 Shuunen Kinen Live 2013 Fuyu ~VIVA!~
2013

Hello! Project DVD Magazine Vol.45
2015

Hello! Project DVD Magazine Vol.44
2015

Hello! Project DVD Magazine Vol.35
2013

Hello! Project 2013 Summer COOL HELLO! ~Mazekooze!~
2013

Hello! Project DVD Magazine Vol.31
2012

Hello! Project DVD Magazine Vol.33
2012

Hello! Project 2013 Spring Haru no Dai Kansha Hinamatsuri Festival 2013 ~Berryz Koubou 10 Nenme Totsunyuu Special!~
2013

Hello! Project 2014 Summer ~KOREZO!~
2014

Morning Musume. DVD Magazine Vol.44
2012

Hello! Project DVD Magazine Vol.37
2013

Hello! Project DVD Magazine Vol.26
2011

Hello! Project 2015 Summer ~CHALLENGER~
2015

Morning Musume.'14 DVD Magazine Vol.61
2014

Hello! Project 2011 Autumn Hello! Project ☆ Festival 2011 ~MOBEKIMASU~
2011

Hello! Project DVD Magazine Vol.25
2011

Hello! Project 2019 Hina Fes ~Hello! Project 20th Anniversary!! Premium~
2019

Morning Musume. 2013 Spring Live Photobook Michishige☆Eleven SOUL ~Tanaka Reina Sotsugyou Kinen Special~
2013

Hello! Project 2014 Winter ~DE-HA MiX~
2014

Morning Musume. DVD Magazine Vol.48
2013

Morning Musume. DVD Magazine Vol.43
2012

Hello! Project DVD Magazine Vol.27
2011

Hello! Project 2015 Hina Fes ~Mankai! The Girls' Festival~ ℃-ute Premium
2015

Morning Musume. DVD Magazine Vol.40
2011

Hello! Project DVD Magazine Vol.42
2014

Hello! Project DVD Magazine Vol.43
2014

Hello! Project 2015 COUNTDOWN PARTY 2015-2016 ~GOODBYE & HELLO!~
2015

Hello! Project 2015 Hina Fes ~Mankai! The Girls' Festival~ ANGERME & Juice=Juice Premium
2015

Hello! Project 2012 Summer Tanjou 15 Shuunen Kinen Live 2012 Natsu ~Wkwk (Wakuwaku) Natsu no FAN Matsuri!~
2012

Morning Musume. DVD Magazine Vol.39
2011

Hello! Project 2011 Summer ~Nippon no Mirai wa WOW WOW Live~
2011

Hello! Project 2011 Winter ~Kangei Shinsen Matsuri~ B kkuri Live
2011

Hello! Project DVD Magazine Vol.30
2012

Morning Musume. DVD Magazine Vol.42
2012

Hello! Channel Vol.4
2011

Morning Musume.'14 DVD Magazine Vol.62
2014

Hello! Channel Vol.6
2011

Hello! Project 2013 Spring Haru no Dai Kansha Hinamatsuri Festival 2013 ~Thank You For Your Love!~
2013

Hello! Project 2013 Spring Yaon Premium LIVE ~Soto Fes~
2013

Morning Musume. DVD Magazine Vol.56
2013

Morning Musume.'15 DVD Magazine Vol.67
2015

Morning Musume. DVD Magazine Vol.38
2011

Morning Musume.'15 DVD Magazine Vol.71
2015

Morning Musume.'14 DVD Magazine Vol.59
2014

Hello! Project 2013 Summer COOL HELLO! ~Sorezoore!~
2013

Hello! Project 2015 Winter ~HAPPY EMOTION!~
2015

BABYMETAL LEGEND - METAL GALAXY - METAL GALAXY WORLD TOUR IN JAPAN EXTRA SHOW - DAY 1
2020
as Rhiometal

Morning Musume. DVD Magazine Vol.45
2012

Morning Musume. DVD Magazine Vol.55
2013

Hello! Project 2014 Winter ~GOiSU MODE~
2014

Morning Musume.'15 DVD Magazine Vol.68
2015

Hello Pro! TIME Vol.5
2011

Hello! Project DVD Magazine Vol.38
2013

Hello! Project 2015 Summer ~DISCOVERY~
2015

Hello! Project DVD Magazine Vol.29
2012

Hello! Project DVD Magazine Vol.28
2012

Morning Musume. DVD Magazine Vol.47
2012

Morning Musume. DVD Magazine Vol.51
2013

S/mileage 2014 Summer LIVE FULL CHARGE ~715 Nippon Budokan~
2014

Morning Musume. DVD Magazine Vol.36
2011

Morning Musume.'14 DVD Magazine Vol.60
2014

Hello! Project FC Event 2013 ~Hello! Xmas Days♥~ Morning Musume.
2013

Morning Musume.'14 DVD Magazine Vol.64
2014

Hello! Project DVD Magazine Vol.39
2013

Hello! Channel Vol.9
2012

Morning Musume. FC Event 2013 ~Morning Labo! Ⅳ~
2013

Morning Musume.'15 DVD Magazine Vol.77
2015

Morning Musume.'15 DVD Magazine Vol.76
2015

Hello! Project 2014 Hina Fes ~Full Course~ Main Dish wa Morning Musume.'14 Desu.
2014

Morning Musume. DVD Magazine Vol.53
2013

Morning Musume. DVD Magazine Vol.49
2013

Morning Musume. DVD Magazine Vol.41
2012

Morning Musume.'16 DVD Magazine Vol.81
2016

Morning Musume.'15 DVD Magazine Vol.73
2015

Hello! Project 2015 Hina Fes ~Mankai! The Girls' Festival~ Morning Musume.'15 Premium
2015

Morning Musume. 2011 Autumn Live Photobook Ai BELIEVE ~Takahashi Ai Sotsugyou Kinen Special~
2011

Morning Musume. DVD Magazine Vol.54
2013

Morning Musume.'14 DVD Magazine Vol.63
2014

Morning Musume.'15 DVD Magazine Vol.69
2015

Morning Musume.'14 DVD Magazine Vol.58
2014

Morning Musume. 9ki Member Ohirome Event
2011

Hello! Channel Vol.12 ~Tanaka Reina Sotsugyou Special!~
2013

Morning Musume.'15 DVD Magazine Vol.74
2015

TRIANGLE ~The Musical~
2015

Petit Best 12
2011

BABYMETAL LEGEND - METAL GALAXY - METAL GALAXY WORLD TOUR IN JAPAN EXTRA SHOW - DAY 2
2020
as Rhiometal

Morning Musume.'16 DVD Magazine Vol.84
2016

Alo-Hello! 7 ~Morning Musume.~
2015

Petit Best 13
2012

Hello! Project DVD Magazine Vol.41
2014

BABYMETAL - Metal Galaxy World Tour in Japan
2019
as Riho-Metal

Morning Musume.'14 DVD Magazine Vol.65
2014

Alo-Hello! Morning Musume. Shashinshuu 2012
2012

Morning Musume. DVD Magazine Vol.46
2012

Morning Musume.'15 DVD Magazine Vol.72
2015

Hello! Channel Vol.10 ~Tabi wo Shichaimashita! Special~
2012

Morning Musume.'14 DVD Magazine Vol.66
2014

Petit Best 20 2020
2020

Morning Musume. Tanjou 16 Shuunen Kinen Event "Watashitachi ga, Ima no Morning Musume. desu. 17 Nenme mo, Saa, Ikou ka."
2013

Hello! Channel Vol.7
2011

Hello! Channel Vol.8
2012

Dream Morning Musume. Special LIVE 2012 Nippon Budokan ~Dai Isshou Shuumaku "Yuusha Tachi, Shuugou Seyo"~
2012

Hello! Project DVD Magazine Vol.47
2015
About Riho Sayashi
鞘師里保 (Sayashi Riho) is a Japanese dancer and actress. She is a former idol under Hello! Project as a 9th generation member of Morning Musume. and the SATOYAMA movement duo Peaberry. She was the most popular member out of Morning Musume.'s 2011 additions. Starting with "Only you", her second single as a member, she was pushed into becoming one of the group's central figures as a main vocalist and dancer, which led to her being named the group's "absolute ace" (絶対的エース; zettaiteki ace) by media. Sayashi graduated from Morning Musume. at the end o… With 231 credits spanning from 2004 to 2026, Riho Sayashi has appeared in 207 films and 24 TV shows.
Fans searching for Riho Sayashi movies, Riho Sayashi filmography, or the latest projects starring Riho Sayashi can stream many of these titles on Bowood.TV, free and in HD, with no subscription required.
Most Popular Riho Sayashi Movies
Where to Watch Riho Sayashi Films
Most Riho Sayashi movies and series are available to stream on Bowood.TV in full HD, completely free and without signup. Browse the complete filmography above to jump directly to any title. For more films and the latest web series featuring Riho Sayashi, check our movies catalogue and browse page.