AmbiO Members Profile (Updated!)

AmbiO Members Profile and Facts
ambiogroup
AmbiO (엠비오), also stylized as AMBIO, is a 5-member South Korean pre-debut boy group under E Entertainment. The group consists of Tetsu, Jeesoo, Ruone, Kiwon, and Seungsang. They released their first pre-debut single “Runnin” on September 27, 2025, followed by “I Wish” on October 27, and their third pre-debut single “Click” on November 27, 2025. They are set to debut on March 18, 2026 with their first mini album, Boys be Ambitious.

Group Name Meaning: AmbiO is derived from the phrase “BOYS BE AMBITIOUS”. It carries the meaning of “a group that delivers messages of challenge, courage, and hope for the future to youth.” Based on each member’s individuality and talent, they complete a unified teamwork while expressing their continuous growth and passion for higher goals through music and performance.
Official Greeting: “BOYS BE AMBITIOUS! Hello! We are AmbiO!”

AmbiO Official Fandom Name: N/A
Fandom Name Meaning: N/A
AmbiO Official Color: N/A

AmbiO Official Logo:
ambiologo

Official SNS:
Facebook: @AMBIO.official
Instagram: @ambio_official
X: @AmbiOofficial/ @AmbiO_members (Members)/ @AmbiO_japan (Japan)
TikTok: @ambio.official
YouTube: @AMBIO_official
Mnet Plus: AmbiO

AmbiO Member Profiles:
Tetsu
tetsu
Stage Name: Tetsu (테츠)
Birth Name: N/A
Position(s): Leader, Rapper, Dancer
Birthday: January 28, 2003
Zodiac Sign: Aquarius
Chinese Zodiac Sign: Horse
Height: 178 (5’10”)
Weight: 63 kg (136 lbs)
Blood Type: N/A
MBTI Type: N/A
Nationality: Japanese-Taiwanese

Tetsu Facts:
– He was born in Taipei, Taiwan.
– He was the first member to be revealed on April 27, 2025, and was later reintroduced along with the other members on September 20, 2025.

Jeesoo
jeesoo
Stage Name: Jeesoo (지수)
Birth Name: N/A
Position(s): Rapper
Birthday: May 28, 2004
Zodiac Sign: Gemini
Chinese Zodiac Sign: Monkey
Height: 186 cm (6’1″)
Weight: 67 kg (147 lbs)
Blood Type: N/A
MBTI Type: N/A
Nationality: Korean-Canadian

Jeesoo Facts:
– He was born in Calgary, Canada.
– He was the second member to be revealed on September 21, 2025.
– He is the tallest member.
– He can speak English and Korean.

Ruone
ruone
Stage Name: Ruone (루원)
Birth Name: N/A
Position(s): Vocalist, Dancer
Birthday: June 17, 2004
Zodiac Sign: Gemini
Chinese Zodiac Sign: Monkey
Height: 182 cm (6’0″)
Weight: 67 kg (147 lbs)
Blood Type: B
MBTI Type: INFJ
Nationality: Japanese

Ruone Facts:
– He was the third member to be revealed on September 22, 2025.
– He was a contestant on the survival show MAKEMATE1, and he was eliminated in episode 6. He used the stage name Kai during the show.
– He wants to be an idol who keeps trying hard to become a better artist.
– He can speak Korean and Japanese.
– Ruone’s role model is Taeyong from NCT.
– One of his nicknames is Kai-kun.
– His recommended food combo is yogurt from convenience stores with banana and tapioca milk tea.
– He enjoys watching stage cams of his favorite idols.
– One of his favorite songs is “Kick It” by NCT 127, which he mentioned during his participation in MAKEMATE1 as a song he would like to cover.
– He is confident in his visuals.
– He’s known for having a long neck.

Kiwon
kiwon
Stage Name: Kiwon (기원)
Birth Name: Yoo Ki Won (유기원)
Position(s): Vocalist
Birthday: July 30, 2006
Zodiac Sign: Leo
Chinese Zodiac Sign: Dog
Height: 174 cm (5’9″)
Weight: 56 kg (132 lbs)
Blood Type: N/A
MBTI Type: INFP
Nationality: Korean

Kiwon Facts:
– He was the fourth member to be revealed on September 23, 2025.
– His specialties are singing, dancing, b-boying, being able to lift his leg behind his head, and flexibility.
– Kiwon’s role model is D.O from EXO.
– He was a contestant on the survival show BOYS II PLANET, and he was eliminated in episode 1.
– He trained for 5 months before joining BOYS II PLANET.
– His lucky number is 621.
– One of his nicknames is Yoo Ki-Nong.
– He participated in BOYS II PLANET as an individual trainee and later signed with E Entertainment after his elimination.
– Kiwon’s POWER MAX song is “By My Side” by JUNNY.
– Kiwon’s hobbies are walking around unfamiliar places and listening to music.
– Kiwon’s secret weapons are his singing, dancing, and quick wit.
– He used to dance at ON MUSIC Academy.
– He released his solo single “こころ” on December 30, 2025, as part of the group’s pre-debut releases.

Seungsang

Stage Name: Seungsang (승상)
Birth Name: Cho Seung Sang (조승상)
Position(s): Vocalist, Maknae
Birthday: May 30, 2007
Zodiac Sign: Gemini
Chinese Zodiac Sign: Pig
Height: 178 cm (5’10”)
Weight: 62 kg (137 lbs)
Blood Type: N/A
MBTI Type: N/A
Nationality: Korean

Seungsang Facts:
– He was born in Seoul, South Korea. His family later moved to Sunchang.
– He was the fifth member to be revealed on September 24, 2025.
– His father is the actor Cho Sunchang.
– He wears glasses.
– He is the eldest of three siblings.
– He used to be part of a dance team called Leap Up.
– He has a mole on his nose.
– He is a fan of My Hero Academia and owns a lot of its merchandise.

Note 1: Please don’t copy-paste the content of this page to other sites/places on the web. Please do respect the time and effort the author put in compiling this profile. If you need/want to use info from our profile, please kindly put a link to this post. Thanks a lot! – Kprofiles.com

Note 2: The members’ heights and weights were confirmed through their profiles on E Entertainment’s official website (Link). Ruone’s MBTI and blood type were confirmed through his self-written profile for MAKEMATE1. Kiwon’s MBTI type was confirmed through his self-written profile for BOYS II PLANET.

For reference on MBTI types:
E = Extroverted, I = Introverted
N = Intuitive, S = Observant
T = Thinking, F = Feeling
P = Perceiving, J = Judging

Note 3: Their positions and the group’s official greeting were confirmed at the 2025 Link Kpop Music Festival in Tokyo (Link).

Made by: “felipe grin§”
(Special thanks to: wonjunforlife, yejun_823, zalfaradio, Lee Felix, Ellie, leo)