C358 Enter Inner Perimeter

As an alchemist, Ling Feng naturally knew what this meant. If it was true, then with his current strength, it would not be a problem for him to refine a Rank 4 pill on a roulette. If he learned the refining method of Wu Xun, he wouldn't be able to concoct a level 5 pill directly. That meant that he only needed to find the Spirit Returning Grass and he would be able to wake Little Tian up