Kang Ye-seo (강예서; born August 22, 2005), known mononymously as Yeseo (예서), is a South Korean singer and actress under 143 Entertainment. She is a member of the girl group MADEIN. She is also a former member of the girl group Busters and the project girl group Kep1er. She was a member of a kid girl group CutieL until disbanding in 2017.