Start by Robbing the Tomb and Become the Guardian of Changbai Mountain

[No heroine, no CP] The protagonist is an ordinary person, there is no system, and there are no plug-ins, which will be explained later in the story. The story is very slow, can it be used as a meal replacement?) It is not a cool article. The story will generally remain unchanged, but the worldview and some minor directions will change slightly, because I really can't remember the additional plot requirements. Often unable to help himself. The person in the game originally knew something, but he had no choice but to follow it without knowing anything.