The Ninth Game of the World of Mountains and Seas

Ordinary people can only see 4% of the matter in this world? Are all myths and legends true? The pineal gland is the organ through which humans come into contact with four-dimensional space? Are humans just genetic test subjects for aliens? No! Please stop talking, I don't want to know the truth of this world! This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.