King Wo's attempts at expansion are reminiscent of the late Emporer Ko, who ruled Sana with an iron fist. Upon Emporer Wo's death, civil war broke out, which ended with Unan, a scholar and a peaceful man, being crowned as Emporer Ko's successor. King Wo later attempted to retake Sana, but to no avail, as he was successfully repeled by Unan. Kaocho is based on Ancient China, with similar architecture, culture and people. Kaocho is also home to many bamboo and rice crops. The encyclopedia describes Kaocho as follows: