I. Introduction:
ONE N’ ONLY currently consist of 6 members: REI, TETTA, NAOYA, Kenshin, Hayato and Eiku. ONE N’ ONLY was founded when EBiSSH and SBC had their first tour together in April 2018. They debuted on May 7, 2018 with the song, “I’M SWAG.” They are under Stardust.
ONE N’ ONLY Fandom Name: SWAG
ONE N’ ONLY Official Colors: White
Their music videos reached a million views in less than 24 hours and their 2nd single Dark Knight placed first on both the Oricon chart and Japan Billboard Top 100.
On March 4, 2025 Stardust Promotion terminated their management contract with Kenshin, citing "significant compliance violations."
II. Members:
| Stage Name: Rei (玲) Real Name: Sawamura Rei (沢村玲) Position: Vocalist Birthday: January 2nd, 1997 Zodiac Sign: Capricorn Height: 177 cm (5’10”) Blood Type: B Instagram: @rei.sawamura_official Personal Blog: #REI He is part of EBiSSH. |
| Stage Name: Tetta Real Name: Seki Tetta (関哲汰) Position: Vocalist Birthday: November 24th, 1997 Zodiac Sign: Sagittarius Height: 169 cm (5’7″) Blood Type: B Instagram: @tetta1124_official Personal Blog: #TETTA He is a member of EBiSSH. |
| Stage Name: Naoya (直弥) Real Name: Kusakawa Naoya (草川直弥) Position: Rapper and Dancer Birthday: April 6th, 1998 Zodiac Sign: Aries Height: 175 cm (5’9″) Blood Type: A Instagram: @0406_k.naofficial Personal Blog: NAOYA He has a brother: Takuya (member of Choutokkyuu). He played soccer (For 11 years) He is part of EBiSSH. Starred in the Japanese BL Drama "HIS" (2020) |
| Stage Name: Hayato (颯斗) Real Name: Takao Hayato (高尾颯斗) Positions: Dance Leader, Rapper and Dancer Birthday: September 17th, 1999 Zodiac Sign: Virgo Height: 175.8 cm (5’9 1/4″) Blood Type: AB Instagram: @8810_takaofficial TikTok: @hayato_ekradio_fy Personal Blog: #HAYATO His special skills are dancing and playing soccer. He studied dancing for more than 15 years. He’s also good at making choreography. He is a member of Satori Boys Club (SBC) |
| Stage Name: Eiku (永玖) Real Name: Yamashita Eiku (山下永玖) Positions: Vocalist Birthday: December 19th, 1999 Zodiac Sign: Sagittarius Height: 169.1 cm (5’6″) Blood Type: B Instagram: @eiku1219_official Personal Blog: #EIKU His special abilities are playing the drums, piano and guitar. He is a member of Satori Boys Club (SBC). |
III. Discography:
Albums
[2020.04.15] ON'O
[2023.05.17] Departure
[2023.12.06] You Are/Hook Up
EPs
[2022.02.16] YOUNG BLOOD
Singles
[2018.11.21] I'M SWAG
[2019.05.08] Dark Knight
[2019.10.16] Category / My Love
[2023.03.08] We’ll rise again
Digital Singles
[2020.10.14] JUST LIKE ME
[2021.01.20] L.O.C.A
[2021.06.09] Video Chat
[2021.09.03] L.O.C.A (PT-BR ver.)
[2021.12.15] We Just Don't Care
[2022.01.05] What's Your Favorite?
[2022.06.17] LUCKY
[2022.09.05] Step Up
[2023.01.18] YOU???
[2023.02.24] Get That (PT-BR ver.)
[2023.04.26] Reflection
[2023.08.16] EVOL
[2023.11.14] Freaking Happy
Comments 1
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HoneySharkX
I love seeing them here. Thank you for taking the time to write them a profile like this!. I used to be a big fan and I'm glad to see how much people are interested in them~.