Seonghyeon
CORTIS
5th Gen (commonly-cited era, approximate)Verified facts
Real nameNot publicly confirmed
Birthdate2009-01-13
Group debut2025-08-18
Group size5 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.