The younger sister of Jang-woo. Following their parents' death, the siblings rely solely on each other. She suddenly disappears and is found dead three days later, her bruised body discarded in a large water bucket at their local washhouse, sparking her brother's relentless quest for vengeance.
Close orphaned siblings with a deep familial bond.
Si-eun's only friend, whose death triggers her profound guilt.
Explore the full interactive character relationship map of Fatal Intuition