BLANC S Profile: BLANC S Facts and Ideal Types BLANC S (블랑 에스) is a sub-unit of BLANC7 under Jackpot Entertainment that consists of: Seonghwan and Shinwoo. The duo began promoting in Japan on October 4th, 2019. BLANC S Fandom Name: – Prism BLANC S Official Colors: – BLANC S Members Profile: Seonghwan Stage Name: Seonghwan … Continue reading BLANC S Profile and Facts