Hyesu's work explores uneasy emotions that she experiences through the immediacy of drawing and the expressiveness of colours. The figures that emerge in her practice have the qualities of fictional characters seen in cartoons, conveying difficult emotions to the viewer in a humorous way. Such playful characters and absurd narratives allude to various states such as uneasiness, loneliness, helplessness, and lethargy. In the joy of being disguised, she and her characters provide a space for the viewers to adapt their subjective narratives, empathetically respond and obtain a new understanding of their inner selves.

Hyesu works with various media, such as ink, oil, and moving images.