Chapter 573
According to Donan, the shadowy figure gave him the knowledge of how to learn only Dragon's Heath. However, according to Leon's experience, it was clear that there was a version of that skill that increased his mana and stamina passively. Although at the level max, those skills would only increase his health, mana, and stamina by ten thousand points, it was more than enough for him to find a way to learn the others.
Regardless, the other skills would be useful, but Leon wouldn't focus on them for the time being. Once Donan ended the lessons, his eyes were more dead than before. He was just looking at Leon, waiting for him to cancel the spell.
"... May I ask you a favor?" Donan asked.
"I will do everything in my power to protect her," Leon replied.
"I don't think you have any use for it, but you will always have my gratitude," Donan bowed.