Anyone following K-pop closely knows the name Ni-Ki — but behind the stage name is a Japanese teen who left home at 14 to chase a career in Seoul. This guide pieces together his journey from Okayama, Japan, to becoming the youngest member of ENHYPEN, with verified facts on his age, height, real name, language skills, and group dynamics.

Full name: Nishimura Riki ·
Stage name: Ni-Ki ·
Date of birth: December 9, 2005 ·
Nationality: Japanese ·
Group: ENHYPEN ·
Position: Maknae (youngest member), main dancer

Quick snapshot

1Confirmed facts
2What’s unclear
3Timeline signal
4What’s next
  • Continues group activities, touring and new releases with ENHYPEN
  • Potential solo projects remain unconfirmed

Ten confirmed data points, one pattern: Ni-Ki’s profile combines widely accepted biographical facts with a few contradictory measurements and limited family details.

Label Value
Full name Nishimura Riki
Stage name Ni-Ki
Date of birth December 9, 2005
Age 19 (as of 2025)
Nationality Japanese
Height 183 cm (6 ft 0 in)
Group ENHYPEN
Position Main dancer, maknae
Years active 2020–present
Instagram @enhypen_niki

The implication: The 183 cm height is widely cited across fan sites, but official company profiles often round to 186 cm, creating a small but persistent discrepancy.

Can Ni-Ki speak fluent English?

Ni-Ki’s language skills

  • Ni-Ki is not fluent in English; he primarily speaks Korean and Japanese
  • He uses simple English phrases in interviews but relies on Korean for group communication

The trade-off: As the only Japanese member, Ni-Ki navigates a multilingual environment where Korean is the group’s working language and English appears in global promotions — but no official fluency test has been published.

English proficiency level

“Ni-Ki is the youngest and only Japanese member of ENHYPEN”

— Legit.ng (Nigerian news platform)

Fan observations suggest his English comprehension has improved during world tours, but no formal assessment exists to confirm advanced fluency.

Why this matters

Ni-Ki’s ability to adapt to Korean as a second language within two years of moving — and then communicate with international fans — shows a level of linguistic flexibility that many young trainees struggle with. For a maknae who joined a Korean group at 14, language acquisition is a quiet but critical part of his integration.

How old was Ni-Ki when he moved to Korea?

Ni-Ki’s move to South Korea

  • Ni-Ki moved to Korea at age 14 to train under Belift Lab
  • He relocated from Okayama, Japan to Seoul

The catch: The exact month of his move is not publicly recorded, and different fan accounts place it anywhere from early to late 2020 before I-LAND began filming in June.

Training period before debut

“I moved to Korea to train and pursue my dream of becoming a K-pop idol.”

— Ni-Ki, as cited by Seat Unique (ticketing and blog platform)

  • He trained for a short period before participating in I-LAND (June–September 2020)
  • Debuted at age 15 on November 30, 2020

The pattern: Ni-Ki’s move and debut happened within the same year — a compressed timeline that set him apart from trainees who spend years in the system.

The upshot

For fans wondering how a 14-year-old foreigner could debut within months, the answer lies in his pre-existing dance skills and the survival show format that fast-tracked him into the final lineup.

What this means: Ni-Ki’s rapid ascent from trainee to debuted idol in under a year is unusual even by K-pop standards, underscoring how the I-LAND format prioritized proven performance readiness over extended training.

Who is Ni-Ki closest to in ENHYPEN?

Ni-Ki’s relationships within the group

  • Ni-Ki is often seen with Jungwon and Sunoo in behind-the-scenes content
  • He has a close friendship with Jay, frequently mentioned by fans
  • His bond with Heeseung is noted for being mentor-like due to Heeseung’s experience

What this means: The “YunKI” friendship (with Jungwon) is one of the most cited pairings in fan communities, but official group dynamics show Ni-Ki maintains warm relationships across all members.

YunKI bond

  • Jungwon and Ni-Ki are often referred to as “YunKI” by fans
  • They share a dorm and frequently appear together in vlogs

The catch: Close friendships are often inferred from camera time, not confirmed statements. Without explicit member interviews, much of this remains fan interpretation.

Why is Ni-Ki’s voice so deep?

Vocal characteristics

  • Ni-Ki has a naturally low vocal range, noticeable in ENHYPEN songs
  • His voice deepened naturally during puberty

The implication: Deep voices at a young age are a common result of early male puberty. No evidence suggests any vocal training or artificial manipulation.

Voice change during adolescence

  • Born in 2005, Ni-Ki’s voice would have changed around age 13-15
  • Fans noted a deeper speaking voice in post-debut content compared to I-LAND broadcasts

The trade-off: A deeper voice can be an asset for certain vocal parts, but maintaining vocal health during growth spurts requires careful training — something K-pop agencies typically manage.

Where does Nishimura Riki live?

Current residence

  • Ni-Ki lives in Seoul, South Korea
  • He resides in a dorm with other ENHYPEN members

The pattern: Like most K-pop groups, ENHYPEN members share dormitory accommodation provided by the agency, a standard practice that allows tight practice and recording schedules.

Dorm life with ENHYPEN

  • The group’s dorm is located in Seoul, though exact address is private
  • Ni-Ki originally from Okayama, Japan

The catch: While his current residence is Seoul, he frequently returns to Japan for family visits during breaks, though specific travel schedules are not publicly disclosed.

Timeline

  • December 9, 2005 — Born in Okayama, Japan
  • 2014 — Began dancing; participated in dance competitions
  • 2020 — Moved to South Korea to train under Belift Lab
  • June–September 2020 — Competed on survival show I-LAND (Wikipedia (encyclopedic source))
  • November 30, 2020 — Debuted as member of ENHYPEN
  • 2021–present — Active with ENHYPEN, releasing multiple albums and touring

The pattern: Ni-Ki’s career moved from local dance competitions to global tours in under a decade — a trajectory that underscores the efficiency of the K-pop training and survival show model.

Clarity check: confirmed vs. unclear

Confirmed facts

  • Ni-Ki was born on December 9, 2005 in Okayama, Japan
  • He debuted with ENHYPEN on November 30, 2020
  • He is the youngest member (maknae) of ENHYPEN
  • He is left-handed and plays piano

What’s unclear

  • Exact date of his move to Korea is not publicly specified
  • Details about his parents and siblings are not widely confirmed (Legit.ng (Nigerian news platform))
  • His English proficiency level is not officially documented
  • His exact height remains disputed (183 cm vs 186 cm)

Quotes from the group

“Ni-Ki is the youngest and only Japanese member of ENHYPEN.”

— Legit.ng (Nigerian news platform)

“I moved to Korea to train and pursue my dream of becoming a K-pop idol.”

— Ni-Ki, as cited by Seat Unique (ticketing and blog platform)

“The group was formed through the survival show I-LAND and debuted in 2020.”

— Wikipedia (encyclopedic source)

Ni-Ki’s own words are sparse in official media, but the group narrative consistently frames him as the young, talented Japanese member who worked hard to bridge cultural and linguistic gaps.

Summary

Ni-Ki’s story is one of precocious talent and rapid adaptation — a Japanese teenager who, by age 15, had moved countries, learned a new language, and debuted in one of the most competitive entertainment industries in the world. The confirmed facts paint a clear picture of his birth, debut, and role in ENHYPEN, while the unconfirmed details (height, family, exact move date) remind fans that even in the hyper-documented K-pop world, some information remains unofficial. For a fan or researcher trying to separate fact from fan speculation, the core biography is solid: Nishimura Riki, born December 9, 2005 in Okayama, debuted November 30, 2020, main dancer and maknae of ENHYPEN. The open questions — his English level, family background, exact height — are opportunities for official sources to clarify, or for fans to accept as part of the mystique.

Additional sources

enhypenguide.com, nolae.eu, scribd.com

Fans looking for more details about his early dance career and training period can explore Ni-Kis complete profile for an in-depth look at his journey.

Frequently asked questions

What is Ni-Ki’s real name?

His real name is Nishimura Riki ( ).

How tall is Ni-Ki?

Reported heights vary: 183 cm (6 ft 0 in) per some sources and 185–186 cm (6 ft 1 in) per others.

What is Ni-Ki’s nationality?

Japanese.

Does Ni-Ki have siblings?

Information about siblings is not widely confirmed.

What is Ni-Ki’s Instagram handle?

@enhypen_niki.

When did Ni-Ki debut with ENHYPEN?

November 30, 2020.

What position does Ni-Ki hold in ENHYPEN?

Main dancer and maknae (youngest member).