C537 Invitation

What kind of concept was that, for a twenty-one-year-old young man to refine a Grade Six Pills? Just like what was said about Yu Zongtao, he became a sixth ranked alchemist at the age of 25. In the eyes of the people, he was an unprecedented talent, with no one coming after him, and Chu Tianchen was only at the age of 21, he was also a sixth ranked alchemist