Rookie K-Pop girl group "Kep1er" has released its debut teaser image, making headlines in Korea's online community.

Netizens who saw the picture responded by saying, "I regret it a little bit about styling..." "Will they debut at MAMA?" and "I didn't recognize who Yeseo was for a moment."

Yeseo is a K-Pop singer and actress currently under 143 Entertainment. She is a member of the project girl group Kep1er, a former member of the girl group Busters and the kid group CutieL, and a pre-debut member of Pritti.