There are tombs in the mountains, there are dragons in the tombs

In a mysterious underground palace, the fate of one person and one dragon meet!The boy Yonghuai promised to take Xiaolong Qingfeng out of the underground palace, but died in a fierce battle with the most powerful flying zombie in the underground palace.Hundreds of years later, a young man who looks similar to Yong Huai——Chu Yan came to this underground palace. At this time, Xiaolong had grown up, but lost his memory in the long anticipation...