Wonhon is a paranormal stealth-action and tactics game about revenge in a 1920's era Korea. The main character is a Korean girl who was killed along with her family during an attack on their village. Jeoseung Saja, the God of Death, gives the girl the paranormal ability to turn into a ghost and possess living creatures. Without weapons to protect herself, the girl must rely on stealth, finding any opportunity to use the power to transform into a ghost in order to exact her revenge.