Last name 성숙 (성숙 , Sung-Sook ) , worldwide, is an extremely rare cognomen. Much more prevalently, 성숙 is the forename as well as the last name.
Seongsug, and ソンスク
, Sung-Sook 
) , worldwide, is an extremely rare cognomen. Much more prevalently, 성숙 is the forename as well as the last name.