Before entering seclusion, Xiao Yan first notified Qin Wan'er through the Nine Nether Token. After all, he had already promised to complete a mission with her, and disappearing without a word would hardly have been appropriate. Qin Wan'er clearly understood that he needed some time to recover after leaving the Nine Nether Secret Realm, however, so she said little beyond asking him to let her know once he emerged.
With everything settled, Xiao Yan entered the Heavenly Tomb and began cultivating with peace of mind. Besides recuperating and consolidating everything he had gained recently, he had another important task for this seclusion: enhancing his Demon Fury Nine Arts. The idea had first occurred to him during his initial battle with Qin Wan'er, but he had never found the time to put it into practice. Now that he finally had some breathing room, he could turn his attention to it.
On the Dou Qi Continent, his Demon Fury Nine Arts had been terrifying Dou Techniques that surpassed the Heaven Tier. Under the Great Thousand World's classification, they were equivalent to Divine Arts. Creating moves of that caliber with the resources available in a Lower Plane was already an extraordinary feat, but such moves were clearly no longer sufficient in his current surroundings.
Of the Demon Fury Nine Arts, the Demon Fury Fire Lotus and the Nine Profound Annihilation Burning Heaven Eyes required no concern. Their power depended on the strength of his flames; the more flames he fused, the stronger they became. The Nine Profound Annihilation Burning Heaven Eyes also required the fusion of lightning power, however, so he would have to devote more attention to that aspect in the future.
As for the others, the Unending Void Demon Body had yet to reach its limits, and as a Body-Tempering Dou