Shou Mai Kyushu Chronicles

On his 22nd birthday, Chen Jiujin received "Jiuzhou Maogram" from his critically ill grandfather, thinking it was an old man's joke. It wasn't until during his geological internship that he discovered a luminous keel in Luolong Stream in the Qinling Mountains. Strange black liquid oozed from the rock wall, and his companions' backs were stained with black lines when they touched it. What's even more frightening is that the blood pattern automatically appears on the blood map, and the man in white follows him. When science could not explain the strange phenomenon in front of him, he was shocked to realize that he had become the key to protecting the dragon veins of Jiuzhou, and a thousand-year secret related to the survival of civilization was slowly being revealed...