A new concept photo has been released that highlights the rising charms of group STAYC members Sumin and Sieun.

STAYC (Su-min, Sieun, Aisa, Se-Eun, Yoon, and Jay) posted the first individual concept photo of their first mini-album "STEREOTYPE" and Sieun on their official SNS account at midnight on August 19th.

Like Yoon and Jay's concept photos released earlier, Sumin and Sieun in the photos showed their innocence and a funky charm against the backdrop of the green forest.

Su-min, who has raised her charm to the fullest with her innocent visuals, elegant appearance, and cute smile, and Sieun's innocence and intensity at the same time is expected to be an upgraded StayC concept with her new mini-album "STEREOTYPE."