Chapter 559: Blood Blue Flower

Upon hearing Lin Yun's words, the Cow Demon was first taken aback, then quickly understood.

He too, had seen the Golden Essence Liquid being sold on the Cosmic Trading System many times recently at such low prices, yet he couldn't get it, which was extremely frustrating. This led him to develop the mindset of being willing to buy it at twice the price.

Suddenly finding someone in reality who had the Golden Essence Liquid, he immediately expressed his long-held thoughts.

"My bad, my bad, Brother Lin. If you want any heavenly treasures that can aid with cultivation, that's not a problem either. Wait, are you practicing... the Martial Arts system?" Cow Demon quickly asked, but his brows furrowed towards the end.

It was only then that he noticed the kind of heavenly treasures Lin Yun had said he needed.