Ari 。Ki
Ari ki jump
Ari (left) and Ki (right)
Gender Female

(1991-08-26) August 26, 1991 (age 26)[1]

Odottemita Status Active
Odottemita Years Active 2007-present
NND related sites NND user page
YT username

BorderlineChocolate (main)
Ari2ki (backup)

Collab partner(s) Light

Ari 。Ki is an American odorite duo of two real life sisters inspired by Tei☆in!. Their almost perfect synchronization and original choreography have inspired many fans, earning almost 3,000 subscribers on their YouTube channel. Ari is seen as the "masuline" figure of the group, while Ki is seen as the "feminine" one. Ari usually stands on the left while Ki always stands on the right so their order will be Ari Ki. They post to both Nico Nico Douga and YouTube.

On Nico Nico Douga, their original choreographies have made it into the top 100 ranking, such as their collaboration choreography with Light of LOVExLOVE WHISTLENv. Amayu and Zensoku were inspired to cover Ari 。Ki's choreography of Here and ThereNv, which made the number 1 ranking in the weekly odottemita category. On YouTube, their most popular original choreography is Dreamin Chuchu with over 9,000 views, choreographed to celebrate Valentine's Day and their most popular dance cover is Tei☆in's "Tell Your World" with over 52,000 views.

Ari 。Ki often collaborated with Light before he graduated from CosStarDance.

In addition to their duets, Ari and Ki upload solo dance covers and freestyle videos. Occasionally, Ki uploads vlogs.


  • Ari
  • Ki

List of DancesEdit

Notice: Sorted with oldest uploaded first. If you see something missing that needs to be here, please add it. If you find a deadlink, please edit or give further notice.
  1. "Robot to Iro Toikei" (2009.12.27)
  2. "Don't Drink Too Much ~Yaaaah Bababai~" (2010.07.13)
  3. "First Kiss!" (2010.08.28)
  4. "Dou Demo ii!" Nv (2010.09.08)
  5. "Ochame Kinou" (2010.09.28)
  6. "Ry☆ -Bloomin' Feeling" (2010.10.18)
  7. "Listen" Nv (2010.11.20) (Original choreography)
  8. "po pi po" (2010.12.15)
  9. "ZIGG-ZAGG" Nv (2010.12.29)
  10. "Happy Synthesizer" Nv (2011.01.15)
  11. "Juliette (Shinee song)" (2011.05.06)
  12. "Heart Beats" Nv (2011.06.11)
  13. "Pachuri-chan" Nv (2011.07.01)
  14. "Love Dokkyun" (2011.08.22)
  15. "Kiss Me I Love You" Nv (2011.09.29)
  16. "Dance de Bakon!" Nv (2011.10.29)
  17. "Heart Catch☆Paradise" Nv (2011.11.27)
  18. "galaxias!" Nv (2011.12.24)
  19. "Ochame Kinou (Black and White ver.)" Nv (2011.12.27)
  20. "Luka Luka★Night Fever" Nv (2012.01.06)
  21. "Tell Your World" Nv (2012.01.15)
  22. "Twinkle" Nv (2012.03.11)
  23. "Bejitarizumu" Nv (2012.05.12)
  24. "CIDER CIDER" Nv (2012.12.27)
  25. "Baby Bias" Nv (2013.01.24) (Original choreography)
  26. "Joe Joe Joe You" Nv (2013.03.04)
  27. "Invaders Invaders" Nv (2013.06.14)
  28. "Luka Luka?Night Fever" (2013.10.04)
  29. "Viva Happy" Nv (2013.11.17)
  30. "_Jet_ (f(x) song)" (2013.11.18)
  31. "Coin Locker Baby" Nv (2014.02.14)
  32. "Gimme Chocolate!! (BABYMETAL song)" Nv (2014.03.21)
  33. "Poppin' Girl@Communication" Nv (2014.03.23)
  34. "Here and There" Nv (2014.06.03) (Original choreography)
  35. "[ POP IT!!" Nv (2014.07.10)
  36. "HAPPY (Pharrell Williams song)" Nv (2014.08.17) (Original choreography)
  37. "Kakkurau" Nv (2014.08.29)
  38. "Tell Your World (At Cho Party 3)" feat. Ari 。Ki and Tei☆in! (2014.08.31)
  39. "Might Bomb Jack" Nv feat. Ari 。Ki and Light (2014.09.01)
  40. "Otsukimi Recital" Nv (2014.09.23)
  41. "LovexLove Whistle" Nv feat. Ari 。Ki and Light (2014.09.30) (Original choreography)
  42. "Circus Monster" Nv (2014.10.04)
  43. "Youkai Taisou Dai Ichi" Nv feat. Ari 。Ki and Light (2014.10.13)
  44. "Zombie Maker" Nv (2014.10.27) (Original choreography)
  45. "Loveccino" Nv (2014.12.06)
  46. "Dreamin' Chuchu" Nv (2015.02.07) (Original choreography)
  47. "Electric Curator" Nv (2015.03.13) (Original choreography)
  48. "A Lie and A Stuffed Animal" Nv (2015.08.17)

Sample VideoEdit

"Tell Your World"
Dance by Ari 。Ki
Choreography by Tei☆in!



  • The sisters performed a full version of "Tell Your World" with Fine and Turutei at Cho Party 3 in 2014[2]
  • Miume complimented Ki's fashion sense upon first meeting[3]

External LinksEdit


  1. NND User Profile
  2. Video of Cho Party 3 Performance
  3. mentioned in Ki's 2014 blog