Selling a pill

"You can breakthrough any time you want?" Wen Cheng was a little confused. But then, he remembered something and his eyes became a little wider. 

"Is it like what you did back in the southern forest? Don't you have to gather your Qi first to breakthrough?" Wen Cheng asked.

"Oh, yes. I do. But I already have enough Qi to breakthrough 4 more times if I wanted to." Alex said.

"What?" Wen Cheng shouted once more. "Is that true? They why haven't you done so already?" he asked.

"Well, that's because Master said that I should wait until my cultivation base is stabilized before I proceed any further with the breakthroughs." Wen Cheng said.

"Oh, yeah that's right. When did you last breakthrough?" he asked.

"Umm… it was the day of the auction." He replied.