Passerby Villain In A Wizard World - Chapter 12: World Of Aetherion

... body heated up, making him sweat profusely. He hurriedly began to practice the Veiled Knight Breathing Method to circulate the energy properly.

If someone were near his training room, they would be able to hear the sound of a gurgling river, which was the sound of his heavy breathing, the blood flowing through his veins, and the gathering of mana.

In fact, the reason why it was so important to have the recipe to impact a major realm of knights was that the mana on this continent ...