At this moment, Jiro Kobayashi couldn't help but be furious.

The Nine Mysterious Stomach Powder was in the exact same treatment field as Kobayashi's stomach powder, making it a direct competitor.

However, the efficacy of the Nine Mysterious Stomach Powder was far superior to that of Kobayashi's!

And what's even more infuriating is that the packaging, net content, and price of the Nine Mysterious Stomach Powder are all on par with Kobayashi's stomach powder!