The Superman Who Walked Out of Fantasyland

This book is also called Ju Sheng Huaibei Chaos. It is a story about a boy who grew up based on the Touhou Project world and challenges other group members to gain permission to regain the position of group leader. Please note that the protagonist has a flexible moral bottom line and double standards of probability, but will not do anything against his conscience. (Oriental Project⇒The Captive of Food + Classic of Mountains and Seas⇒The Legend of Oriental Supernatural)