한 Semmi Semmi (세미) was a South Korean Female Artist. She started in group Matilda. She retired in 2019. Read All General Information International Stage Name : Semmi Domestic Stage Name : Pronounce 세미 Full Name : Oh Heesun Pronounce Full Domestic Name : Pronounce 오희선 Date of Birth : 1995-10-22 (age 30) Zodiac : Libra Country of Birth : South Korea Related Artists : Matilda - Vocal Artist retired : 2019 Original group : Matilda (No longer a member) Images