| Origin | Seoul, South Korea |
| Debut | October 7, 2026 |
| Number of Members | 12 |
| Members | Keito Siyoung Shinhaeng Yoshiki Daiki Ryoga Issa Yura Ryuji Towa Kosuke Yuki |
| Oldest Member | Keito |
| Youngest Member (Maknae) | Yuki |
| Tallest Member | Ryuji |
| Shortest Member | Keito |
KO1KEYZ Members Profile
Keito
| Full Name | Ono Keito |
| Birthday | July 25, 2000 |
| Birthplace | Kochi, Japan |
| Age | 25 years and 10 months old |
| Height | 5 feet 8 inches (172 cm) |
| Zodiac Sign | Leo |
| Chinese Zodiac Sign | Dragon |
| Blood Type | B |
| MBTI | ENTJ |
Siyoung
| Full Name | Park Si Young |
| Birthday | May 6, 2003 |
| Birthplace | Gyeonggi-do, South Korea |
| Age | 23 years and 1 month old |
| Height | 5 feet 10 inches (178 cm) |
| Weight | 121 lbs (55 kg) |
| Zodiac Sign | Taurus |
| Chinese Zodiac Sign | Goat |
| Blood Type | AB |
| MBTI | INFP |
| Education | ANE K-POP ACADEMY |
Shinhaeng
| Full Name | Oh Shin Haeng |
| Birthday | May 3, 2004 |
| Birthplace | Mokpo, South Jeolla, South Korea |
| Age | 22 years and 1 month old |
| Height | 5 feet 10 inches (177 cm) |
| Zodiac Sign | Taurus |
| Chinese Zodiac Sign | Monkey |
| Blood Type | O |
| MBTI | ISFP |
| Education | Mokpo University |
Yoshiki
| Full Name | Yada Yoshiki |
| Birthday | June 18, 2004 |
| Birthplace | Nara Prefecture, Japan |
| Age | 22 years old |
| Height | 5 feet 10 inches (177 cm) |
| Zodiac Sign | Gemini |
| Chinese Zodiac Sign | Monkey |
| Blood Type | B |
| MBTI | ENFP |
| Education | gpSTUDIO |
Daiki
| Full Name | Kato Daiki |
| Birthday | October 8, 2004 |
| Birthplace | Nagoya, Aichi Prefecture, Japan |
| Age | 21 years and 8 months old |
| Height | 5 feet 10 inches (178 cm) |
| Weight | 137 lbs (62 kg) |
| Zodiac Sign | Libra |
| Chinese Zodiac Sign | Monkey |
| Blood Type | O |
| MBTI | ENTP |
Ryoga
| Full Name | Iizuka Ryoga |
| Birthday | January 21, 2005 |
| Birthplace | Gunma Prefecture, Japan |
| Age | 21 years and 5 months old |
| Height | 5 feet 9 inches (175 cm) |
| Zodiac Sign | Aquarius |
| Chinese Zodiac Sign | Monkey |
| Blood Type | O |
| MBTI | INTP |
Issa
| Full Name | Yanagiya Issa |
| Birthday | March 10, 2005 |
| Birthplace | Gunma Prefecture, Japan |
| Age | 21 years and 3 months old |
| Height | 5 feet 10 inches (177 cm) |
| Zodiac Sign | Pisces |
| Chinese Zodiac Sign | Rooster |
| Blood Type | A |
| MBTI | INFP |
| Education | Kiryu Daiichi High School |
Yura
| Full Name | Abe Yura |
| Birthday | June 16, 2005 |
| Birthplace | Tsukuba City, Ibaraki, Japan |
| Age | 21 years old |
| Height | 5 feet 9 inches (175 cm) |
| Zodiac Sign | Gemini |
| Chinese Zodiac Sign | Rooster |
| Blood Type | A |
| MBTI | ISTP |
| Education | K-POP Art School |
Ryuji
| Full Name | Sugiyama Ryuji |
| Birthday | July 7, 2006 |
| Birthplace | Saitama, Japan |
| Age | 19 years and 11 months old |
| Height | 6 feet 0 inches (182 cm) |
| Zodiac Sign | Cancer |
| Chinese Zodiac Sign | Dog |
| Blood Type | A |
| MBTI | ENFP |
| Education | EXPG STUDIO OMIYA |
Towa
| Full Name | Hamada Towa |
| Birthday | June 5, 2007 |
| Birthplace | California, United States |
| Age | 19 years old |
| Height | 5 feet 9 inches (175 cm) |
| Zodiac Sign | Gemini |
| Chinese Zodiac Sign | Pig |
| Blood Type | AB |
| MBTI | ESFP |
Kosuke
| Full Name | Terui Kosuke |
| Birthday | December 2, 2007 |
| Birthplace | Chiba, Japan |
| Age | 18 years and 6 months old |
| Height | 5 feet 9 inches (174 cm) |
| Zodiac Sign | Sagittarius |
| Chinese Zodiac Sign | Pig |
| Blood Type | A |
| MBTI | ISTP |
Yuki
| Full Name | Goto Yuki |
| Birthday | December 24, 2007 |
| Birthplace | Kanagawa Prefecture, Japan |
| Age | 18 years and 5 months old |
| Height | 5 feet 11 inches (180 cm) |
| Zodiac Sign | Capricorn |
| Chinese Zodiac Sign | Pig |
| Blood Type | B |
| MBTI | INFJ |
| Position | SainenshÅ (Youngest) |
Member Ages: Oldest to Youngest
| Member | Birthday | Age |
|---|---|---|
| Keito | July 25, 2000 | 25 years, 10 months, 29 days old |
| Siyoung | May 6, 2003 | 23 years, 1 month, 17 days old |
| Shinhaeng | May 3, 2004 | 22 years, 1 month, 20 days old |
| Yoshiki | June 18, 2004 | 22 years, 5 days old |
| Daiki | October 8, 2004 | 21 years, 8 months, 15 days old |
| Ryoga | January 21, 2005 | 21 years, 5 months, 2 days old |
| Issa | March 10, 2005 | 21 years, 3 months, 13 days old |
| Yura | June 16, 2005 | 21 years, 7 days old |
| Ryuji | July 7, 2006 | 19 years, 11 months, 16 days old |
| Towa | June 5, 2007 | 19 years, 18 days old |
| Kosuke | December 2, 2007 | 18 years, 6 months, 21 days old |
| Yuki | December 24, 2007 | 18 years, 5 months, 30 days old |
FAQs
How many members are in KO1KEYZ?
KO1KEYZ is a 12-member K-pop boy group. The group consists of Keito, Siyoung, Shinhaeng, Yoshiki, Daiki, Ryoga, Issa, Yura, Ryuji, Towa, Kosuke, and Yuki.
When did KO1KEYZ debut?
KO1KEYZ debuted on October 7, 2026.
