ermhoi

ermhoi (born November 22, 1992) is a Japanese singer-songwriter and track maker from Yamanashi Prefecture. She is best known as a member of the electro unit Black Boboi and as a vocalist for the collective MILLENNIUM PARADE, founded by Daiki Tsuneta. Her music blends ethereal vocals with nu jazz, electronic, house, and experimental J-pop elements. She has released solo singles and EPs, and her work has been featured in major anime and film projects, including the opening theme for Kage no Jitsuryokusha ni Naritakute! (The Eminence in Shadow). With a dedicated following in Japan's indie scene, she continues to perform at events like Fuji Rock Festival and develop her craft as both a vocalist and producer.[edit]

ermhoi was born in Yamanashi Prefecture, a region known for its natural beauty, including Mount Fuji. Details about her childhood and education remain private. Her first major step into music came when she joined the electro unit Black Boboi, which provided her initial platform and exposure. The pivotal moment in her career came when she joined the musical collective MILLENNIUM PARADE, founded by Daiki Tsuneta of King Gnu, which significantly raised her profile. She performed at Fuji Rock Festival as part of Black Boboi, helping establish her as a distinctive voice in Japan's indie electronic scene.[edit]

ermhoi's breakthrough came with her involvement in MILLENNIUM PARADE. In 2022, the collective contributed to the soundtrack for Dragon Ball Super: Super Hero, featuring the theme song "WE ARE THE ONE / 俺たちはひとつ." The same year, she released solo material and continued performing with Black Boboi. In 2023, she provided the opening theme for the anime The Eminence in Shadow, further expanding her reach. As a track maker, she produces and writes her own music, releasing singles and EPs that blend electronic, house, and experimental pop. She remains active with both Black Boboi and MILLENNIUM PARADE as of 2026, performing live and working on new music.[edit]

ermhoi projects an ethereal, artistic, and somewhat mysterious public image. Her signature aesthetic blends modern minimalism with a dreamy, otherworldly quality, reflected in her music videos and promotional images. The media portrays her as a talented and versatile track maker and vocalist, respected for her unique sound within Japan's indie and experimental pop scene. Her social media voice is professional, focusing on music releases and performance announcements. There is no widely known official fandom name, but her audience appreciates her genre-blending approach and introspective artistry.[edit]

ermhoi's fanbase is a quiet, devoted community that gathers around her ethereal sound and her role as the sole female regular member of MILLENNIUM PARADE. There is no formal fandom name documented in iFANN's data; fans simply know her as Hoi-chan, a nickname that surfaces in interviews and social media. They follow her solo work and her collaborations, from the 2021 release of "Mountain Song" to her 2022 tour "The Attention Please with ermhoi" across Tokyo, Nagoya, and Osaka. These are not fans who shout; they are listeners who linger.

In the global fame rankings, ermhoi currently does not hold a placement in iFANN's published lists. The Global Fame Engine has evaluated her, but she is not among the Top 1,000 worldwide or any Top-100 scope list. That may change as her profile grows, but for now, her fame is measured in the devoted niche she occupies in Japan's indie scene.

Her influence, though, extends beyond charts. In 2024, she shared stages with experimental luminaries Jim O'Rourke and Eiko Ishibashi, and her 2021 collaboration with MONDO GROSSO on "FORGOTTEN" reached listeners far beyond her usual circles. She is a fixture at festivals like Fuji Rock and ROMANTIC HOUR '23, where her performances are whispered about in the days after.[edit]

Her stage name "ermhoi" is stylized entirely in lowercase, a nod to her minimalist aesthetic. She is not only a vocalist but also a track maker, producing beats and arranging her own music. Her work has been featured in both anime and major film projects, highlighting her crossover appeal. Her music videos often feature a dreamy, otherworldly aesthetic that matches her ethereal vocal style. She has collaborated with various artists in the Japanese music scene, though specific names are not widely publicized.

Within MILLENNIUM PARADE, she handles vocals and English lyrics for several songs, and she is the only female regular member of the group. Her name is read as "Ermuhoi," not "Eomhoi," a detail fans are quick to correct. In 2022, she held a three-city tour titled "The Attention Please with ermhoi," following a March performance at WWW in Tokyo, footage of which was released in two parts. A story fans still retell: her 2024 double-headline show with Jim O'Rourke and Eiko Ishibashi, where her set with the Attention Please was a highlight of the evening.[edit]

ermhoi keeps her family life private. No public information is available about her parents, siblings, or any children. She does not share details about her household or pets on social media. Her public persona focuses entirely on her music and artistic projects.[edit]

ermhoi is associated with Daiki Tsuneta, the founder of MILLENNIUM PARADE and a frequent collaborator. She is also a core member of the electro unit Black Boboi, with whom she has performed at major festivals. Her work with MILLENNIUM PARADE connects her to other members of the collective, though individual members are not widely publicized.[edit]

ermhoi is known for keeping her personal life, including romantic relationships, extremely private. There are no publicly confirmed reports, credible news articles, or official statements regarding any romantic partners, past or present. As of 2026, her relationship status is not publicly known and is presumed to be single based on the absence of any reported information.[edit]

iFANN currently estimates ermhoi's net worth at $1 million. Her income flows from music sales, streaming royalties, live performances, and production work. As a member of Black Boboi and MILLENNIUM PARADE, she earns from group releases and tours, while solo singles and EPs add to her revenue. Sync licensing for anime and film projects, including the opening theme for Kage no Jitsuryokusha ni Naritakute!, provides another stream. Her net worth is modest compared to mainstream artists, reflecting her focus on the indie and experimental scene.[edit]