Six years have passed since the "Saikyo Rebellion" that shook the Kingdom of Artepinosa. Huang Hua, a boy living in Saikyo, found an Enigma Doll among his brother's belongings. Huang Hua will have various encounters with the Enigma Doll who has the memory of his brother. However, the wounds left by the rebellion were trying to move the times. What happened in Saikyo on a snowy day? What is the truth behind the "Saikyo Rebellion"? What can Huang Hua look at in a story that intersects the past and the present, and find out the truth? Digital versions delisted as of 2020