Yooa
Oh My Girl
3rd Gen (commonly-cited era, approximate)Verified facts
Real nameYoo Si-a
Birthdate1995-09-17
Group debut2015-04-21
Group size6 members
Stats — real computed numbers, never invented ratings
All facts are sourced from public profiles/Wikipedia and verified before being added. Age and years active are computed from today's date, not a fixed snapshot.