Ji-sung Koo: Ji-sung Koo. Actress: Teo-chi bai teo-chi. Ji-sung Koo is known for Teo-chi bai teo-chi (2015), Girls, Girls, Girls (2014) and The Puppet (2013).
Known For: Teo-chi bai teo-chi (Actress), Girls, Girls, Girls (Ha-eun), The Puppet (Hyeon-Jin)
