STAYC member Sieun(시은)

Sieun's voice makes listeners feel seen and understood. It opens their hearts.

Sieun easily gives off a laid-back swagger

Sieun finds the right note at once and expresses it without awkwardness. There is no involuntary habit of layering the tone like armor. This characteristic helps her agility and allows her to freely handle the speed. It is like being able to see the letters smaller on a high-resolution monitor. As a result, she is responsible for many parts of STAYC's songs like an inning eater in baseball.

Her vocals are delivered clearly, so she can take on a slurred style. She naturally carries off the bravado. You can see it from the 38th second of the video.

Since childhood, Sieun has kept her sense of self distinct from her acting—making her delivery feel effortlessly authentic. At 1:57 in the video, her rap leaves you wondering: is it heartfelt, or just brilliantly acted?

Sieun is kind to her younger siblings, but this does not apply to Sumin

She tries to tease her fans, but often gets teased back.

Sieun has the effortlessly free-spirited vibe typical of an arts major.

She seems to be singing and then burping.

In lyrics she wrote for her fans, Sieun said, “I’ll wait for you—don’t be afraid.” During the tour, she came to feel both her worth and the weight of her professional responsibility.

She enjoys drinking.

She tends to be forgetful.

Sieun has worshipped IU since she was a child.