| Debut | March 4, 2020 |
| Number of Members | 9 |
| Members | Yonashiro Sho Kawashiri Ren Shiroiwa Ruki Kono Junki Sato Keigo Kawanishi Takumi Kimata Syoya Kinjo Sukai Mamehara Issei |
| Former Members | Tsurubo Shion Ohira Shosei |
| Oldest Member | Yonashiro Sho |
| Youngest Member (Maknae) | Mamehara Issei |
| Tallest Member | Sato Keigo |
| Shortest Member | Kawanishi Takumi |
JO1 Members Profile
Yonashiro Sho
| Full Name | Yonashiro Sho (與那城 奨) |
| Birthday | October 25, 1995 |
| Birthplace | Okinawa, Japan |
| Age | 30 years and 7 months old |
| Height | 5 feet 11 inches (180 cm) |
| Weight | 154 lbs (70 kg) |
| Zodiac Sign | Scorpio |
| Chinese Zodiac Sign | Pig |
| Blood Type | O |
| MBTI | ESTJ-A |
| Position | Leader |
Kawashiri Ren
| Full Name | Kawashiri Ren (川尻 蓮) |
| Birthday | March 2, 1997 |
| Birthplace | Fukuoka, Japan |
| Age | 29 years and 3 months old |
| Height | 5 feet 8 inches (173 cm) |
| Weight | 132 lbs (60 kg) |
| Zodiac Sign | Pisces |
| Chinese Zodiac Sign | Ox |
| Blood Type | O |
| MBTI | ENTJ-A |
| Position | Performance Leader |
Shiroiwa Ruki
| Full Name | Shiroiwa Ruki (白岩 瑠姫) |
| Birthday | November 19, 1997 |
| Birthplace | Tokyo, Japan |
| Age | 28 years and 7 months old |
| Height | 5 feet 9 inches (175 cm) |
| Weight | 121 lbs (55 kg) |
| Zodiac Sign | Scorpio |
| Chinese Zodiac Sign | Ox |
| Blood Type | O |
| MBTI | ISTJ-A |
Kono Junki
| Full Name | Kono Junki (河野 純喜) |
| Birthday | January 20, 1998 |
| Birthplace | Nara, Japan |
| Age | 28 years and 5 months old |
| Height | 5 feet 9 inches (174 cm) |
| Weight | 141 lbs (64 kg) |
| Zodiac Sign | Aquarius |
| Chinese Zodiac Sign | Tiger |
| Blood Type | O |
| MBTI | ESFP-T |
| Position | Vocal Leader |
Sato Keigo
| Full Name | Sato Keigo (佐藤 景瑚) |
| Birthday | July 29, 1998 |
| Birthplace | Aichi, Japan |
| Age | 27 years and 10 months old |
| Height | 6 feet 0 inches (182 cm) |
| Weight | 132 lbs (60 kg) |
| Zodiac Sign | Leo |
| Chinese Zodiac Sign | Tiger |
| Blood Type | A |
| MBTI | ENFJ-T |
Kawanishi Takumi
| Full Name | Kawanishi Takumi (川西 拓実) |
| Birthday | June 23, 1999 |
| Birthplace | Hyōgo, Japan |
| Age | 27 years old |
| Height | 5 feet 7 inches (170 cm) |
| Weight | 126 lbs (57 kg) |
| Zodiac Sign | Cancer |
| Chinese Zodiac Sign | Rabbit |
| Blood Type | B |
| MBTI | ISFJ-T |
Kimata Syoya
| Full Name | Kimata Syoya (木全 翔也) |
| Birthday | April 5, 2000 |
| Birthplace | Aichi, Japan |
| Age | 26 years and 2 months old |
| Height | 5 feet 7 inches (171 cm) |
| Weight | 132 lbs (60 kg) |
| Zodiac Sign | Aries |
| Chinese Zodiac Sign | Dragon |
| Blood Type | A |
| MBTI | ENFJ-T |
Kinjo Sukai
| Full Name | Kinjo Sukai (金城 碧海) |
| Birthday | May 6, 2000 |
| Birthplace | Osaka, Japan |
| Age | 26 years and 1 month old |
| Height | 5 feet 11 inches (180 cm) |
| Weight | 132 lbs (60 kg) |
| Zodiac Sign | Taurus |
| Chinese Zodiac Sign | Dragon |
| Blood Type | A |
| MBTI | ISFP-T |
Mamehara Issei
| Full Name | Mamehara Issei (豆原 一成) |
| Birthday | May 30, 2002 |
| Birthplace | Okayama, Japan |
| Age | 24 years old |
| Height | 5 feet 8 inches (173 cm) |
| Weight | 152 lbs (69 kg) |
| Zodiac Sign | Gemini |
| Chinese Zodiac Sign | Horse |
| Blood Type | O |
| MBTI | ESFP-T |
| Position | Youngest |
Former Member Profile
Tsurubo Shion
| Full Name | Tsurubo Shion (鶴房 汐恩) |
| Birthday | December 11, 2000 |
| Birthplace | Shiga, Japan |
| Age | 25 years and 6 months old |
| Height | 5 feet 10 inches (178 cm) |
| Weight | 141 lbs (64 kg) |
| Zodiac Sign | Sagittarius |
| Chinese Zodiac Sign | Dragon |
| Blood Type | A |
| MBTI | INFP-A |
Ohira Shosei
| Full Name | Ohira Shosei (大平 祥生) |
| Birthday | April 13, 2000 |
| Birthplace | Kyoto, Japan |
| Age | 26 years and 2 months old |
| Height | 5 feet 9 inches (176 cm) |
| Weight | 139 lbs (63 kg) |
| Zodiac Sign | Aries |
| Chinese Zodiac Sign | Dragon |
| Blood Type | A |
| MBTI | ENFJ-A |
Member Ages: Oldest to Youngest
| Member | Birthday | Age |
|---|---|---|
| Yonashiro Sho | October 25, 1995 | 30 years, 7 months, 30 days old |
| Kawashiri Ren | March 2, 1997 | 29 years, 3 months, 22 days old |
| Shiroiwa Ruki | November 19, 1997 | 28 years, 7 months, 5 days old |
| Kono Junki | January 20, 1998 | 28 years, 5 months, 4 days old |
| Sato Keigo | July 29, 1998 | 27 years, 10 months, 26 days old |
| Kawanishi Takumi | June 23, 1999 | 27 years, 1 day old |
| Kimata Syoya | April 5, 2000 | 26 years, 2 months, 19 days old |
| Kinjo Sukai | May 6, 2000 | 26 years, 1 month, 18 days old |
| Mamehara Issei | May 30, 2002 | 24 years, 25 days old |
FAQs
How many members are in JO1?
JO1 is a 9-member K-pop boy group. The group consists of Yonashiro Sho, Kawashiri Ren, Shiroiwa Ruki, Kono Junki, Sato Keigo, Kawanishi Takumi, Kimata Syoya, Kinjo Sukai, and Mamehara Issei.
When did JO1 debut?
JO1 debuted on March 4, 2020, with their single PROTOSTAR.
