However, Yan Rufeng didn't know about the open challenge posted by the Martial Arts Association. After resolving the matter with Ning Zhongnan, he flew to the depths of Yandang Mountain to prepare for closed-door cultivation.
The lush mountains overlapped like rolling waves, majestic and magnificent. Yan Rufeng stood at the edge of a cliff, holding a longsword, ready to carve out a cave on the cliff for cultivation.
Sweeping his divine sense, he discovered a faint layer of haze covering the cliff's distance, indistinct and elusive, occasionally nearing and drifting away.
"Is that Spiritual Energy?"
Yan Rufeng was surprised.
Summoning his flying sword, he leaped onto it, heading to the dense area of Spiritual Energy, sitting cross-legged and greedily absorbing it.
After about a quarter of an hour, the Spiritual Energy in Yan Rufeng's dantian was substantially replenished, and his spirit was greatly uplifted.
He leaped up and instantly cast the Earth Tunneling Technique.