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Company8D Creative
Year Debut2019
Year Active4
Year DisbandedN/A

Not Ranked



OnlyOneOf (온리원오브; debuted May 28, 2019) is a six-member South Korean boy group under 8D Creative. The group debuted on May 28, 2019. The six members of OnlyOneOf are: Shin Kyubin (aka KB), Lee Sungho (aka Rie), Lee Taeyeob (aka Yoojung), Kim Junhyung (aka Junji), Lee Yongsoo (aka Mill), and Jung Wookjin (aka Nine). Park Jisung (aka Love), who was the leader and main vocalist of the group, left the group in August 2021.

# of Members6
MembersKB, Rie, Yoojung, Junji, Mill, Nine
Former MemberLove (depared Aug 2021)
Oldest MemberKB (born Apr 23, 1992)
Youngest MemberNine (born Dec 13, 1999)
DebutMay 28, 2019
Company8D Creative

OnlyOneOf Member Ages

OnlyOneOf Age Ranking

Ranked from oldest to youngest.

1. KBApr 23, 199231 years old
2. RieNov 06, 199626 years old
3. YoojungMay 29, 199726 years old
4. JunjiApr 06, 199825 years old
5. MillMar 30, 199924 years old
6. NineDec 13, 199923 years old

OnlyOneOf Member Heights

OnlyOneOf Height Ranking

Ranked from tallest to shortest.

1. Junji1.81 m (5'11")
2. KB1.80 m (5'11")
3. Nine1.77 m (5'10")
4. Yoojung1.76 m (5'9")
5. Rie1.74 m (5'9")
6. Mill1.71 m (5'7")

Members and Position(s)


OnlyOneOf is composed of six members born between 1992 and 1999. Their names are: KB, Rie, Yoojung, Junji, Mill, and Nine. The oldest member is KB (born Apr 23, 1992). The youngest member (maknae) is Nine (born Dec 13, 1999). The official fandom name of OnlyOneOf is lyOn, a play on words that references both the name of the group and the English word lion. Former member Park Jisung (aka Love) left the group in August 2021.


KBlead rapper, vocalist, visual
Rielead vocalist, lead dancer
Yoojungmain dancer, vocalist
Junjilead vocalist, lead dancer
Millmain rapper, vocalist
Ninevocalist, maknae

Fun Facts and Trivia

  • The oldest member of OnlyOneOf is KB (born Apr 23, 1992).
  • The youngest member (maknae) of OnlyOneOf is Nine (born Dec 13, 1999).
  • The leader of OnlyOneOf was Love (born Jan 17, 1994). In August 2021, it was announced that he had left the group.


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