Vintage Sujungsa Dress size M/L *YSL Pattern

Vintage Dress with Yves Saint Laurent Pattern. Doubtful it has much relation to YSL, since the tag reads Sujungsa from Seoul. Truly vintage, I have never seen this dress anywhere else. Maybe it is related to YSL - I know nothing to compare it to, so big shrug here. The fit is cute, could use a belt. It has loops but no belt included.