97 Star Disciple's Encounter with the Sexy Cultivators of the White Serpent Sect.

Yang Wei strolled out of the Huo Pill Pavilion, scanning the area for Wu Fengtian. "Where's that silly boy?" he muttered to himself, "Doesn't he know to wait for me when I'm busy with women?" He sighed heavily, fishing out the Blood Strengthening Pill from his robes and examining it in the sunlight.

When sunlight hit the pill, it scattered the light rays all over the place. That's one of the go-to ways to check how pure a pill is. If light struggles to pass through, you know there's high-levels of impurity. But Yang Wei's pill? It had around 25% impurity, which is why sunlight breezed through it like nothing.

I guess teaching those Green Sanctuary Peak disciples wasn't entirely a waste. They're professionals at pill refinement, and learning a bit on what they do did give me an upper hand when I refined this...