90 years was enough for Zhu Wuyan to integrate most of the manuals and cultivation techniques into the cultivation techniques and manuals that he had mastered. At the same time, he had also absorbed enough nutrients from the cultivation techniques and manuals of the Mystic Desolate Great World.
Relying on his superior comprehension and erudition, Zhu Wuyan successfully raised his mastery of cultivation techniques and classics to a great level, surpassing the scope of Dongyuan Continent, or rather, surpassing the scope of the human world.
At the same time, Zhu Wuyang's main body also confirmed one thing. Above the Heaven and Earth Immortal Art and Heaven and Earth Dharma Spells, the cultivation technique manuals of the next major realm were divine arts.
Be it cultivation techniques or spells, those that transcended the Heaven and Earth Immortal Arts and Heaven and Earth Spells were collectively called divine arts.