Asymmetry / Black Nightmare

"Asymmetry / Black Nightmare"
Limited edition "Asymmetry" version
Single by Naniwa Danshi
from the album ND5
B-side
  • "One-Room Christmas"
  • "Izayoi Moon"
  • "Hirahira × Tokimeki"
  • "Things That Never Change"
ReleasedSeptember 3, 2025
GenreJ-pop
Length4:05 ("Asymmetry")
3:08 ("Black Nightmare")
LabelStorm Labels
Naniwa Danshi singles chronology
"Doki it"
(2025)		 "Asymmetry / Black Nightmare"
(2025)		 "Hard Work"
(2026)
Music video
"Asymmetry" on YouTube
"Black Nightmare" on YouTube

"Asymmetry" / "Black Nightmare" (アシンメトリー / Black Nightmare) is the ninth single by Japanese boy band Naniwa Danshi. It was released on September 3, 2025, through Storm Labels.[1][2]

The single is a double A-side release featuring the title tracks "Asymmetry" and "Black Nightmare". Digital distribution via streaming and download platforms began on September 10, 2025.[3]

Background and release

The release of the single was announced on July 20, 2025, during the Niigata performance of the group's concert tour Naniwa Danshi LIVE TOUR 2025 "Bon Bon Voyage".[4]

"Asymmetry" serves as the theme song for the TV Asahi drama Revenge Spy, starring group member Kazuya Ohashi.[5] The song is a mysterious and thrilling dance number that reflects the drama's central theme of duality, portraying a story of "unrequited love" within its narrative.[5] A long version of the track was first unveiled during the broadcast of the drama's first episode on July 2, 2025.[6]

"Black Nightmare" is the theme song for the Kansai TV and FOD drama Laundering, starring Joichiro Fujiwara.[7] The track was written specifically for the series and features an addictive electro dance sound with elements of hip hop and rap. Its hard-boiled atmosphere and edgy lyrics highlight a darker side of the group.[7] The song was first revealed in a promotional video for the drama released on June 22, 2025.[7]

According to Joichiro Fujiwara, the recording process for "Black Nightmare" was particularly challenging and took longer than other songs recorded around the same period for the group's album Bon Bon Voyage.[7]

Chart performance

The single debuted at number one on the Oricon Weekly Singles Chart, marking the group's ninth consecutive number-one single since their debut.[8] It also topped the Oricon Weekly Combined Singles Chart.[9]

On Billboard Japan, the single reached number one on the Top Singles Sales chart, selling approximately 358,000 copies in its first week.[10]

Among the individual tracks, "Asymmetry" peaked at number one on the Billboard Japan Hot 100, while also reaching number 10 on the Oricon Weekly Digital Singles (individual track) chart and number 8 on the Billboard Japan Download Songs chart.[11]

"Black Nightmare" reached number 21 on the Oricon Weekly Digital Singles (individual track) chart and number 19 on the Billboard Japan Download Songs chart.[12][13]

Track listing

Credits adapted from official sources.[14][15]

CD

Limited edition "Asymmetry" version

  1. "Asymmetry" – 4:05
    • Lyrics: Keiya-amazuti
    • Composition: Keiya-amazuti, Shingo Kubota (Jazzin'park)
    • Arrangement: Shingo Kubota (Jazzin'park)
  2. "Black Nightmare" – 3:08
    • Lyrics: her0ism, TSINGTAO
    • Composition: her0ism, Peyote Beats, TSINGTAO
    • Arrangement: Taku Yoshioka
  3. "One-Room Christmas" – 3:25
    • Lyrics: Junji Ishiwatari
    • Composition: Erik Lidbom
    • Arrangement: Hiroshi Sasaki

Limited edition "Black Nightmare" version

  1. "Black Nightmare" – 3:08
  2. "Asymmetry" – 4:05
  3. "Izayoi Moon" – 3:13
    • Lyrics: Kazunari Okada
    • Composition and arrangement: HIKARI

Regular edition / Famikura Store Online limited "Naniwan Dark-n" version

  1. "Asymmetry" – 4:05
  2. "Black Nightmare" – 3:08
  3. "Hirahira × Tokimeki" – 3:09
    • Lyrics: Kazunari Okada
    • Composition: Hwang Hyun (MonoTree)
    • Arrangement: Tomoki Ishizuka
  4. "Things That Never Change" – 4:34
    • Lyrics: katsuki.CF (Relic Lyric inc.)
    • Composition: tasuku, Ryota Fukuoka, katsuki.CF
    • Arrangement: tasuku
  5. "Asymmetry" (instrumental) – 4:05
  6. "Black Nightmare" (instrumental) – 3:08
  7. "Hirahira × Tokimeki" (instrumental) – 3:09
  8. "Things That Never Change" (instrumental) – 4:30

DVD/Blu-ray

Limited edition "Asymmetry" version

  • "Asymmetry" (music video)
  • "Asymmetry" (making of music video)
  • "Asymmetry" (dance shot version)

Limited edition "Black Nightmare" version

  • "Black Nightmare" (music video)
  • "Black Nightmare" (making of music video)
  • "Asymmetry / Black Nightmare" (choreography)

References

  1. ↑ "なにわ男子、9枚目両A面シングル、9・3にリリース 異なる魅力を詰め込んだダンス曲". ORICON NEWS (in Japanese). oricon ME. July 20, 2025. Retrieved March 25, 2026.
  2. ↑ "アシンメトリー/Black Nightmare". Storm Labels OFFICIAL SITE (in Japanese). Storm Labels. Retrieved March 25, 2026.
  3. ↑ "なにわ男子 9thシングル「アシンメトリー / Black Nightmare」サブスク＆ダウンロード配信スタート！". Storm Labels OFFICIAL SITE (in Japanese). Storm Labels. September 10, 2025. Retrieved March 25, 2026.
  4. ↑ "なにわ男子、両A⾯シングル9月3日リリース決定 大橋和也・藤原丈⼀郎主演ドラマ主題歌【アシンメトリー／Black Nightmare】". Modelpress (in Japanese). Netnative. July 20, 2025. Retrieved March 25, 2026.
  5. 1 2 "大橋和也主演『リベンジ・スパイ』主題歌はなにわ男子　「ドキドキハラハラ」な新曲に". Real Sound (in Japanese). Blueprint. June 21, 2025. Retrieved March 25, 2026.
  6. ↑ "「リベンジ・スパイ」第1話は大橋和也のスパイシーンから！　主題歌のロングver.も初公開". TV Guide Web (in Japanese). Tokyo News Service. July 5, 2025. Retrieved March 25, 2026.
  7. 1 2 3 4 "藤原丈一郎「1つの夢だった」主演ドラマ『ロンダリング』主題歌がなにわ男子の新曲「Black Nightmare」に決定". TVLIFE web (in Japanese). Gakken Publishing. June 22, 2025. Retrieved March 25, 2026.
  8. ↑ "なにわ男子、デビューシングルから9作連続1位 前作初週売上超え【オリコンランキング】". oricon (in Japanese). September 9, 2025. Retrieved March 25, 2026.
  9. ↑ "なにわ男子、自身通算9作目の合算シングル1位【オリコンランキング】". ORICON NEWS (in Japanese). oricon ME. September 11, 2025. Retrieved March 25, 2026.
  10. ↑ "【ビルボード】なにわ男子『アシンメトリー／Black Nightmare』35.8万枚でシングル1位". Billboard JAPAN (in Japanese). Hanshin Contents Link. September 8, 2025. Retrieved March 25, 2026.
  11. ↑ "【ビルボード】なにわ男子「アシンメトリー」が総合首位、山下達郎「オノマトペISLAND」は11位デビュー". Billboard JAPAN (in Japanese). Hanshin Contents Link. September 10, 2025. Retrieved March 25, 2026.
  12. ↑ "週間デジタルシングル（単曲）ランキング 2025年09月22日付". oricon. Archived from the original on September 21, 2025. Retrieved March 25, 2026.
  13. ↑ "Billboard JAPAN Top Dawnload Songs｜Charts". Billboard JAPAN. Retrieved March 25, 2026.
  14. ↑ "アシンメトリー/Black Nightmare［CD+DVD+歌詞ブックレット］＜初回限定【アシメ】盤＞/なにわ男子". TOWER RECORDS ONLINE (in Japanese). Tower Records. Retrieved March 25, 2026.
  15. ↑ "アシンメトリー/Black Nightmare［CD+DVD+歌詞ブックレット］＜初回限定【ブラメ】盤＞/なにわ男子". TOWER RECORDS ONLINE (in Japanese). Tower Records. Retrieved March 25, 2026.
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