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Ong Seong U
4 TV shows · 2019–2023
Ong Seong U on TV
Would You Like a Cup of Coffee?
as Kang Go Bi
Kakao TV · 2021 · Ended
Strong Girl Nam Soon
as Kang Hui Sik
jTBC · 2023 · Ended
Moment at Eighteen
as Choi Jun U
jTBC · 2019 · Ended
More Than Friends
as Lee Su
jTBC · 2020 · Ended