Princess Lan Yue was well aware of her own aptitude. To break through to the Bone Marrow Cleansing Grandmaster Realm, she would need a Bone Marrow Cleansing Pill. Elixirs that increased Spiritual Power, like the Concentration Pill, might also be necessary.
Even though she had taken elixirs like the Ancient Spirit Pill and Divine Growth Pill to prepare, the Spiritual Power required to break through to the Bone Marrow Cleansing Grandmaster Realm was immense.
Take the Crown Prince, for example. He had consumed numerous elixirs, but in the end, he still had to use Gathering Spirit Liquid to refine a Concentration Pill. Only then, with the help of a Bone Marrow Cleansing Pill, did he finally break through.
She knew this so clearly because her master, Xu Chuan, had refined the very Concentration Pill that Crown Prince Yang Qian took. She had watched the entire process firsthand and thus knew exactly how it was done.
