NiziU Biography: Age, Members, Net Worth, Songs, Albums, Parents, Height, Nationality

NiziU (pronounced “Needs You”; Japanese: ニジュー; Korean: 니쥬) is a Japanese girl group formed by JYP Entertainment and Sony Music Entertainment Japan through the survival audition program Nizi Project (2020).

The nine-member group blends J-pop idol charm with K-pop training, featuring bright, energetic performances and catchy melodies.

They debuted in Japan on December 2, 2020, with “Step and a Step” and made their Korean debut on October 30, 2023, with “Press Play.”

Quick Facts

• Members Real Names: Yamaguchi Mako, Hanabashi Rio, Katsumura Maya, Oe Riku, Arai Ayaka, Ogou Mayuka, Nakabayashi Rima, Suzuno Miihi, Hillman Nina
• Stage Name: NiziU
• Active From: 2020
• Origin: Seoul, South Korea / Japan (formed via Nizi Project)
• Active Until: Ongoing
• Nationality: Japanese (one member half-American)
• Occupation: Idols, Singers, Dancers
• Net Worth: $10 million

Early Life and Members

NiziU was formed through Nizi Project, a survival show selecting Japanese trainees for a JYP girl group. Members trained in Korea and debuted with a “K-pop 3.0” localization concept.

Yamaguchi Mako

• Date of Birth: April 4, 2001
• Age: 25 years old
• Place of Birth: Fukuoka, Japan
• Ethnicity: Japanese
• Religion: Unknown
• Parents: Unknown
• Siblings: Unknown
• Education: Unknown
• Early Life: Ranked 1st in Nizi Project; leader with strong dance and leadership skills.

Hanabashi Rio

• Date of Birth: February 4, 2002
• Age: 25 years old
• Place of Birth: Japan
• Ethnicity: Japanese
• Religion: Unknown
• Parents: Unknown
• Siblings: Unknown
• Education: Unknown
• Early Life: Ranked 4th; main dancer known for powerful performances.

Katsumura Maya

• Date of Birth: April 8, 2002
• Age: 25 years old
• Place of Birth: Japan
• Ethnicity: Japanese
• Religion: Unknown
• Parents: Unknown
• Siblings: Unknown
• Education: Unknown
• Early Life: Ranked 5th; sub-vocalist with charismatic stage presence.

Oe Riku

• Date of Birth: October 26, 2002
• Age: 25 years old
• Place of Birth: Japan
• Ethnicity: Japanese
• Religion: Unknown
• Parents: Unknown
• Siblings: Unknown
• Education: Unknown
• Early Life: Ranked 2nd; lead vocalist with strong vocal stability.

Arai Ayaka

• Date of Birth: June 20, 2003
• Age: 22 years old
• Place of Birth: Japan
• Ethnicity: Japanese
• Religion: Unknown
• Parents: Unknown
• Siblings: Unknown
• Education: Unknown
• Early Life: Ranked 8th; visual and sub-vocalist recognized for visuals.

Mayuka (Ogou Mayuka)

• Date of Birth: November 13, 2003
• Age: 22 years old
• Place of Birth: Japan
• Ethnicity: Japanese
• Religion: Unknown
• Parents: Unknown
• Siblings: Unknown
• Education: Unknown
• Early Life: Ranked 7th; sub-vocalist and sub-rapper with versatile talents.

Nakabayashi Rima

• Date of Birth: March 26, 2004
• Age: 22 years old
• Place of Birth: Japan
• Ethnicity: Japanese
• Religion: Unknown
• Parents: Unknown
• Siblings: Unknown
• Education: Unknown
• Early Life: Ranked 3rd; main rapper with strong rap delivery.

Suzuno Miihi

• Date of Birth: August 12, 2004
• Age: 21 years old
• Place of Birth: Japan
• Ethnicity: Japanese
• Religion: Unknown
• Parents: Unknown
• Siblings: Unknown
• Education: Unknown
• Early Life: Ranked 6th; lead vocalist and lead dancer with sweet vocals.

Hillman Nina

• Date of Birth: 2005
• Age: 21 years old
• Place of Birth: Japan (half-American)
• Ethnicity: Japanese-American
• Religion: Unknown
• Parents: Unknown
• Siblings: Unknown
• Education: Unknown
• Early Life: Ranked 9th; main vocalist and maknae with powerful vocals.

Formation

NiziU formed on June 26, 2020, via Nizi Project, with auditions held in Japan, Hawaii, and Los Angeles, followed by training in Korea. JYP’s “K-pop 3.0” vision localized K-pop for Japan. The final lineup was ranked by performance, and the group debuted on December 2, 2020.

Career

NiziU debuted with pre-debut release Make You Happy (2020) and their single “Step and a Step.” They released Japanese albums U (2021), Coconut (2023), and New Emotion (2025), along with EPs like Rise Up (2024) and Good Girl But Not For You (2026). Their Korean debut came with “Press Play” in 2023.

Known for hits like “Take a Picture,” “Clap Clap,” and “Paradise,” they remain active with tours, endorsements, and 2026 releases.

Discography

• Make You Happy (digital mini-album, pre-debut 2020)
• U (studio album, 2021)
• Coconut (studio album, 2023)
• New Emotion (studio album, 2025)
• Rise Up (EP, 2024)

Social Media

• Instagram Handle: @niziu_official
• TikTok Handle: @niziu_official
• YouTube Channel: NiziU Official

Personal Life

NiziU’s personal details are limited, as members focus on their careers. No public marriages, children, or confirmed dating histories exist. Heights and private lives are kept low-profile.

Net Worth

NiziU’s net worth is approximately $10 million. Their income comes from album and single sales, world tours and live performances, streaming royalties, brand endorsements and sponsorships, and merchandise, showcasing their growing success and popularity.