Yudai Koga

K

  • Name: K
  • Native name: ケイ
  • Also Known as: Kei, 케이, こが ゆうだい, Koga Yudai, 古賀祐大
  • Nationality: Japanese
  • Gender: Male
  • Born: October 21, 1997
  • Age: 28
Koga Yudai, known by the stage name K, is a Japanese singer, dancer and member of &TEAM (エンティーム). The group is made up of the final 9 contestants of the audition program "&Audition - The Howling" and is managed by HYBE Labels Japan. He graduated from Kashiwa City Ryutsu University of Economics Affiliated High School, where he was a long-distance runner. He turned down a full scholarship to become an athlete and, instead, spent 2 years and 8 months as a trainee. In 2020, he appeared in the survival show "I-LAND" where he was eliminated in part 2 of the finals. In 2022, he was selected as a member of &TEAM and officially debuted on December 7th, 2022, with the mini album “First Howling: ME“.

(Source: Korean = Namu Wiki || Translation = kisskh) Edit Biography
Drama
Year Title # Role Rating
2025 "Watashi wo Moratte": Deai Hen
Japanese Drama, 2025, 3 eps
[Grim Reaper] (Support Role)
3
[Grim Reaper]
Support Role
7.2
2024 "Watashi wo Moratte": Koiji Hen
Japanese Drama, 2024, 8 eps
[Grim Reaper] (Support Role)
8
[Grim Reaper]
Support Role
7.3
2024 "Watashi wo Moratte": Tsuioku Hen
Japanese Drama, 2024, 8 eps
[Grim Reaper] (Support Role)
8
[Grim Reaper]
Support Role
7.4
Movie
Year Title Role Rating
2025 Paripi Komei the Movie
Japanese Movie, 2025,
[Himself] (Guest Role)
[Himself]
Guest Role
7.6
Special
Year Title # Role Rating
2025 The Toppa File Special
Japanese Special, 2025, 1 eps
[Izakaya staff] (Guest Role)
1
[Izakaya staff]
Guest Role
0.0
TV Show
Year Title # Role Rating
2025 2025 Idol Star Athletics Championships
Korean TV Show, 2025, 3 eps
(Regular Member)
3
Regular Member
7.6
2025 All! Light! &Team: Lune Daisakusen
Japanese TV Show, 2025, 10 eps
(Regular Member)
10
Regular Member
8.5
2024 Go One!!! Meet & Link
Japanese TV Show, 2024, 26 eps
(Regular Member)
26
Regular Member
8.9
2024 2024 Idol Star Athletics Championships Chuseok Special
Korean TV Show, 2024, 3 eps
(Regular Member)
3
Regular Member
7.7
2024 With Music
Japanese TV Show, 2024, 25 eps
(Ep. 5, 26) (Guest)
25
(Ep. 5, 26)
Guest
0.0
2024 &Team Gakuen Season 2
Japanese TV Show, 2024, 10 eps
(Regular Member)
10
Regular Member
8.6
2023 2023 SBS Gayo Daejeon: Switch On
Korean TV Show, 2023, 1 eps
[Performer] (Regular Member)
1
[Performer]
Regular Member
8.0
2023 2023 Music Bank Global Festival
Korean TV Show, 2023, 2 eps
[Performer - Part 2] (Regular Member)
2
[Performer - Part 2]
Regular Member
8.0
2023 The Weekly 99 Music
Japanese TV Show, 2023, 100 eps
(Ep. 39, 70) (Guest)
100
(Ep. 39, 70)
Guest
0.0
2023 Idol's Physical Race Season 2
Korean TV Show, 2023, 5 eps
(Ep. 5) (Guest)
5
(Ep. 5)
Guest
7.8
2023 Dope Club
Korean TV Show, 2023, 20 eps
(Ep. 16) (Guest)
20
(Ep. 16)
Guest
7.7
2022 &Team Gakuen
Japanese TV Show, 2022, 11 eps
(Regular Member)
11
Regular Member
8.5
2022 &Routine
Japanese TV Show, 2022, 9 eps
(Regular Member)
9
Regular Member
8.1
2022 Music Universe K-909
Korean TV Show, 2022, 21 eps
(Ep. 19) (Guest)
21
(Ep. 19)
Guest
7.9
2022 &Audition - The Howling: Japan Summer Vacation
Japanese TV Show, 2022, 2 eps
(Regular Member)
2
Regular Member
8.1
2022 &Mission Snack Bar
Japanese TV Show, 2022, 3 eps
(Regular Member)
3
Regular Member
8.2
2022 &Audition Pictionary
Japanese TV Show, 2022, 15 eps
(Regular Member)
15
Regular Member
8.1
2022 &Audition: The Howling
Japanese TV Show, 2022, 8 eps
(Regular Member)
8
Regular Member
8.1
2022 Venue101
Japanese TV Show, 2022, 100 eps
(Guest)
100
Guest
0.0
2022 Girl's Barking Night
Japanese TV Show, 2022, 130 eps
(Ep. 100) (Guest)
130
(Ep. 100)
Guest
0.0
2021 Human Gourmentary Omoumai Mise
Japanese TV Show, 2021, 150 eps
(Ep. 162) (Guest)
150
(Ep. 162)
Guest
0.0
2020 I-LAND: Special
Korean TV Show, 2020, 1 eps
(Regular Member)
1
Regular Member
7.8
2020 I-LAND
Korean TV Show, 2020, 12 eps
[Contestant] (Regular Member)
12
[Contestant]
Regular Member
8.5
2020 CDTV Live! Live!
Japanese TV Show, 2020, 125 eps
(Guest)
125
Guest
8.0
2018 The Toppa File
Japanese TV Show, 2018, 200 eps
(Guest)
200
Guest
0.0
2012 Ningen Kansatsu Variety Monitoring
Japanese TV Show, 2012, 400 eps
(Ep. 369, 413) (Guest)
400
(Ep. 369, 413)
Guest
8.0
2011 Weekly Idol
Korean TV Show, 2011, 707 eps
(Ep. 622) (Guest)
707
(Ep. 622)
Guest
8.1
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K

Yudai Koga
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Details

  • First Name: Yudai
  • Family Name: Koga
  • Native name: ケイ
  • Also Known as: Kei, 케이, こが ゆうだい, Koga Yudai, 古賀祐大
  • Nationality: Japanese
  • Gender: Male
  • Born: October 21, 1997
  • Age: 28

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