Riho Sayashi

Riho Sayashi is a Japanese actress, singer, and dancer who first rose to prominence as the "absolute ace" of the idol group Morning Musume. Joining in 2011 at age 12, she quickly became the group's main vocalist and dancer, a role she held until her graduation in 2015. Since then, she has built a solo career that spans acting, musicals, and even a stint as a touring member of the metal band Babymetal.

Today, Sayashi is active as a stage and screen actress, with recent dramas and upcoming music releases. Her fans appreciate her for her sharp dance moves, powerful voice, and the fearless way she has reinvented herself outside the idol world. She maintains an active social media presence, sharing behind-the-scenes moments and connecting with her audience. [edit]

Riho Sayashi was born on May 28, 1998, in Higashihiroshima, a city in Hiroshima Prefecture. She grew up in a family that supported her early interest in performing. Her mother, a fan of the idol group Morning Musume, encouraged her to pursue entertainment. Sayashi began training at the Actor's School Hiroshima (ASH), a local talent school known for producing idols and actors.

In 2010, at age 12, she won the Jc&Jk actress audition, a competition for junior high and high school students. This win led to her participation in Morning Musume's stage play "Fashionable" later that year. Her performance caught the attention of the production, and she was invited to audition for the group. She passed the audition and was announced as a ninth-generation member in early 2011.

Her official debut with Morning Musume took place on January 2, 2011, at the Hello! Project 2011 WINTER Kangei Shinsen Matsuri concert. Her first single as a member was "Maji Desu ka Ska!", released in April 2011. Even in her early days, she stood out for her dance ability and vocal presence. [edit]

Riho Sayashi quickly became a central figure in Morning Musume, often taking lead vocal and dance positions. Her second single, "Only You", solidified her role as the group's ace. She participated in numerous tours, TV shows, and variety programs, building a strong fanbase.

In 2015, she announced her graduation from the group, with her final performance on December 31, 2015. She moved to New York to study language and dance, taking a break from the entertainment industry. During this time, she also performed as a touring member of the metal band Babymetal in 2019, including a notable appearance at Glastonbury Festival.

She resumed her career in September 2020, signing with Japan Music Entertainment. Since then, she has expanded into acting, appearing in dramas like "Momoume" (2021), "Is My Kawaii About to Expire?" (2022), and "Saba Saba Girl" (2023). She has also taken on stage roles and musicals. As of 2026, she has several projects in the pipeline, including the drama "Tsukiatte Age te mo Ii kana" and the EP "OWN", set for release in September 2026. [edit]

Riho Sayashi is often described as a versatile performer, known for her energetic stage presence and sharp dance moves. She has a fashion-forward style, often mixing streetwear with elegant pieces. Her fans, who call themselves "Sayashi Fans" or simply "Rihofans", appreciate her down-to-earth personality and her willingness to share her journey on social media.

She is also seen as a role model for young women, especially those interested in pursuing a career in entertainment. Her time with Babymetal showcased her ability to cross genres, earning her respect from a broader music audience. She communicates with fans through her Instagram and X accounts, often posting behind-the-scenes photos and updates. [edit]

Riho Sayashi commands a dedicated following that has evolved alongside her career, though her audience operates without a formal, branded name. Unlike the organized, ritualistic campaigns seen in some idol circles, her fanbase is defined by a shared appreciation for her fearless genre-hopping and sharp artistic reinvention rather than a specific collective identity or fan-funded projects. This organic support system grew steadily as she transitioned from the polished stage of Morning Musume to the raw energy of metal music, drawing in listeners who value versatility over tradition. Despite this loyal base, iFANN's Global Fame Engine evaluated her standing in August 2026 and determined that she currently holds no placement within the published Global Top 1,000 rankings or any Top-100 scope list. The evaluation confirms that while she remains a significant figure in Japanese entertainment, she does not currently register with the specific global volume required for a ranked position on the worldwide chart. Her fame is deep within her regional sphere and niche communities but has not yet expanded into the broad, cross-border metrics necessary for a global ordinal rank. The absence of a numerical score reflects a status where influence is substantial but distributed across multiple disciplines, acting, singing, and dancing, rather than concentrated in a single viral moment or massive commercial peak that would propel her into the top tier of global celebrity. This nuanced standing allows her to maintain a steady presence in the industry without the volatility often associated with being ranked among the world's most famous personalities.[edit]

Riho Sayashi possesses an AB blood type, a trait often linked to quirky personalities in Japanese culture. She keeps a pet dog that occasionally appears on her social media channels. A lifelong fan of the anime One Piece, she has publicly expressed her admiration for the character Luffy. Before her rise to fame, she trained at the Actor's School Hiroshima alongside future idols. Her childhood included rigorous calligraphy practice, a skill she still values. Strawberries remain her favorite food, frequently mentioned during interviews. Beyond these personal details, two major moments define her public legacy. Her graduation from Morning Musume was announced on March 20, 2018, but actually took place on December 31, 2015, marking a definitive end to her era as a central figure in the group's ninth generation. Fans remember this departure as a pivotal shift in Hello! Project history. Even more striking was her appearance at the Glastonbury Festival on July 1, 2019, when she joined the metal band BABYMETAL on stage. This crossover event blended her idol background with heavy metal performance, creating a unique milestone that cemented her reputation as a fearless performer willing to defy genre expectations.[edit]

Riho Sayashi was born to parents who supported her career from a young age. Her mother was a fan of Morning Musume, which influenced her initial interest in the group. She has a younger brother, but details about her family are kept private. As of 2026, she is not married and has no children. She lives in Tokyo, where she continues her career. She has a pet dog, which she often posts about on Instagram. [edit]

Riho Sayashi is associated with the idol group Morning Musume, where she was a key member. She also collaborated with the metal band Babymetal, performing as a touring member. Her professional career has been managed by UP-FRONT PROMOTION and later Japan Music Entertainment. [edit]

There is no public information about Riho Sayashi's dating history. She has kept her personal life private, and as of 2026, she is reportedly single. She has not been linked to any romantic partners in the media. [edit]

Per iFANN's editorial analysis, Riho Sayashi's net worth stands at $5 Million as of 2026. This financial estimate reflects her diverse income streams spanning acting roles, music releases, and live stage productions. Throughout her tenure with Morning Musume, she secured one of the highest salaries among members, accumulating wealth through royalties from single sales and concert tours. Post-graduation, she successfully negotiated contracts for her solo acting projects and musical endeavors, further stabilizing her earnings. Brand endorsements and merchandise sales continue to contribute significantly to her portfolio. Since returning to active duty in the entertainment industry in 2020, her net worth has shown consistent growth, driven by her ability to pivot between different performance mediums.[edit]