The Mountains And Rivers Are Within And Without

Former agent Chu Huan pursued the drug trafficking group leader "Big Ghost". After successfully sniping him, he fell off a cliff, arriving in a small county town while severely injured and stumbling along the way. In the town, he encountered two extraordinary individuals who treated his wounds and took him back to the deep mountains, inviting him to teach the children there. Chu Huan discovered that the children were incredibly strong and brave, and that the mountain held its own mysteries.

The people led by Nanshan are known as "Shoushanren". For most of the year, they are unable to step beyond the boundaries of the "River" to live in the world of ordinary people

The people of Shoushan guard the mountain, which also features an annual event known as the reversal of the mountain gate. Surrounding the "gate" is a mysterious group known as the "Gatekeepers," who protect the sacred mountain and holy water

On the day when Chu Huan resolved to leave the residence of the mountain guardian, it coincided with the day when the mountain gate was reversed. On the other side of the "gate," many unknown shadows were preparing to emerge. In order to protect the mountain guardians and the gatekeepers, Chu Huan and Nan Shan joined forces with the gatekeeper clan leader, Lu Ge, and Chu Huan's old acquaintance, Yuan Ping, to venture into the gate, embarking on a peculiar adventure in the world within.