Few things spark fiercer debate among K-pop fans than a change in an idol’s voice. When a live clip of ENHYPEN’s Ni-Ki singing with a noticeably deeper tone hit social media in 2025, it didn’t just draw attention—it ignited a full-blown controversy about whether the 19-year-old was being authentic or putting on a performance.

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Full name: Nishimura Riki ·
Birth date: December 9, 2005 ·
Height: 183 cm (6 ft 0 in) ·
Nationality: Japanese ·
Group: ENHYPEN ·
Position: Main Dancer, Vocalist

Quick snapshot

1Basic Profile
  • Real name: Nishimura Riki (Wikipedia)
  • Birthday: December 9, 2005 (Wikipedia)
  • Nationality: Japanese (Wikipedia)
  • Height: 183 cm (Wikipedia)
2Group Role
  • Main Dancer (Wikipedia)
  • Vocalist (Wikipedia)
  • Youngest member (maknae) (Wikipedia)
  • Joined via I-Land (Wikipedia)
3Controversy Snapshot
4Skills & Languages
  • Fluent in Japanese and Korean (Wikipedia)
  • Basic English (Wikipedia)
  • Plays piano (Wikipedia)
  • Exceptional dancer (Wikipedia)

12 key facts about Ni-Ki, one pattern: his profile blends official debut data with fan-disputed physical stats.

Label Value
Stage name Ni-Ki ( )
Birth name Nishimura Riki
Birth date December 9, 2005
Age (as of 2025) 19
Height 183 cm (6 ft 0 in)
Weight Approx. 60 kg (132 lbs)
Blood type B
MBTI INFP
Nationality Japanese
Group debut November 30, 2020
Sub-unit None
Hobbies Dancing, listening to music, playing piano

The implication: the table shows that official profiles are consistent but omit certain details (like weight) that fans debate.

What is Ni-Ki’s real name?

What is Ni-Ki’s full name?

  • His real name is Nishimura Riki. (Wikipedia)
  • The stage name “Ni-Ki” is derived from “Riki.” (Wikipedia)

How old is Ni-Ki?

  • Born December 9, 2005, making him 19 years old as of 2025. (Wikipedia)

When is Ni-Ki’s birthday?

  • December 9. (Wikipedia)

The pattern: his name and birthday are well-documented; the stage-name origin is less known but confirmed.

What happened to Ni-Ki from ENHYPEN?

Why was Ni-Ki accused of forcing his deep voice?

  • A clip from ENHYPEN’s 2025 Killing Voice appearance showed Ni-Ki singing with a noticeably deeper and raspier tone. (India Today)
  • Some online viewers accused him of deliberately forcing a lower pitch to resemble Stray Kids’ Felix. (India Today)
  • Comparison clips from 2020, when Ni-Ki was 15, were circulated on X and TikTok. (India Today)

What did fans say about the live singing clip?

  • Supporters argued the vocal change was due to natural puberty and years of vocal training. (India Today)
  • Fans also pointed out that Ni-Ki was already known for having a low voice before the controversy. (Times of India)

Has Belift Lab responded?

  • No official statement from Belift Lab has been released as of early 2025. (India Today)
Bottom line: Ni-Ki’s deeper voice is a matter of interpretation. For fans, natural maturation is the obvious answer. For critics, it’s a deliberate stylistic choice. The agency’s silence leaves the debate unresolved.

Why is Ni-Ki’s voice so deep?

Is Ni-Ki’s natural voice deep?

  • Ni-Ki’s natural speaking voice has a lower register, noted by fans even before debut. (Times of India)
  • The deep voice in live singing could be a result of vocal training, aging, or stylistic choice. (India Today)

Can Ni-Ki speak fluent English?

  • Ni-Ki speaks some English but is not fluent. (Wikipedia)
  • He is fluent in Japanese and Korean. (Wikipedia)

Is Ni-Ki fluent in Japanese?

  • Yes, as a native Japanese speaker from Okayama. (Wikipedia)
The upshot

Ni-Ki’s voice depth isn’t an anomaly—male vocal cords often thicken during late adolescence. The debate says more about the K-pop industry’s expectation of consistency than about Ni-Ki’s actual vocal health.

Is Ni-Ki the tallest in ENHYPEN?

What is Ni-Ki’s height in cm?

  • Ni-Ki is 183 cm (6 ft 0 in). (Wikipedia)

Who is the thinnest in ENHYPEN?

  • The thinnest member is often debated; Ni-Ki has a slender build but no official ranking exists. (Wikipedia)

How does Ni-Ki’s height compare to other members?

  • He is one of the tallest members, but Heeseung is slightly taller (approx. 184 cm). (Wikipedia)

The catch: height stats come from fan measurements, not official Belift Lab profiles.

Why is Ni-ki called Riki?

What is Ni-Ki’s sister’s name?

  • His older sister is Nishimura Rina, born in 2003. (Wikipedia)

How old is Ni-Ki’s sister?

  • As of 2025, she is 22 years old. (Derived from birth year 2003.)

Does Ni-Ki have any siblings?

  • He has one older sister, Rina. (Wikipedia)
Bottom line: Ni-Ki’s family is private. The nickname “Riki” is just his birth name shortened—no elaborate story.

Timeline

  • December 9, 2005 — Born in Okayama, Japan. (Wikipedia)
  • 2018–2020 — Trained under Belift Lab; participated in survival show I-Land. (Wikipedia)
  • September 18, 2020 — Confirmed as a member of ENHYPEN via I-Land finale. (Wikipedia)
  • November 30, 2020 — Debut with ENHYPEN with mini-album ‘Border: Day One’. (Wikipedia)
  • Late 2024 – Early 2025 — Viral clip of Ni-Ki singing with a deep voice; accusations of forcing vocal tone. (India Today)

The trade-off: the timeline shows a clear path from trainee to star, but the controversy is the first major bump in Ni-Ki’s public narrative.

Clarity: What’s confirmed, what’s unclear

Confirmed facts

  • Ni-Ki’s real name is Nishimura Riki. (Wikipedia)
  • He debuted on November 30, 2020. (Wikipedia)
  • He is 183 cm tall. (Wikipedia)
  • He was born in Okayama, Japan. (Wikipedia)
  • He is left-handed. (Wikipedia)
  • The controversy was triggered by a Killing Voice performance. (India Today)

What’s unclear

  • Whether the deep voice in the live clip was genuine or affected. (YouTube commentary)
  • Official statement from Belift Lab regarding the controversy. (India Today)
  • Exact weight and body measurements (not officially disclosed).

Quotes

“His voice has changed naturally, there’s nothing fake about it. He’s been through puberty.”

— Fan, as reported by India Today

“He’s always had a deep voice. This is just a clearer example of his mature tone.”

— Supporter, as reported by Times of India

The common thread: fans see the deeper voice as a natural progression; critics see it as a performance. The lack of an official statement leaves both sides with evidence gaps.

Summary

For ENHYPEN’s management, the controversy is a reminder that every vocal shift in a young idol gets magnified online. The choice is clear: either release a statement explaining Ni-Ki’s vocal development, or let the debate continue to erode trust in the group’s authenticity. For fans, the deeper voice is a sign of growth. For the industry, it’s a test of how much transparency is owed to a global audience.

Additional sources

reddit.com, youtube.com, youtube.com, youtube.com

For a deeper look into his background, check out Ni-Kis complete profile which includes his early life and training details.

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Frequently asked questions

What is Ni-Ki’s position in ENHYPEN?

Main Dancer and Vocalist.

Does Ni-Ki have any siblings?

Yes, an older sister named Nishimura Rina.

What is Ni-Ki’s zodiac sign?

Sagittarius (born December 9).

What are Ni-Ki’s hobbies?

Dancing, listening to music, playing piano.

Is Ni-Ki the youngest member of ENHYPEN?

Yes, he is the maknae.

What shows did Ni-Ki appear on before debut?

He participated in the survival show I-Land (2020).

How did Ni-Ki get his stage name?

It’s a shortened version of his birth name, Riki.

What is Ni-Ki’s favorite food?

According to interviews, he likes sushi and ramen.

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