Overlord: Start from the Goblin Lair.

"When did you discover this?"

Ron stretched out his hand, and as Gillianis released her control, the shadows of the runes slowly floated into his hand, like living things. As Ron turned the runes in his hand, they began to emit a faint black mist.

This means that these runes are not simply illusory images, but contain some real matter. These seemingly unreal runes are actually inextricably linked to Aikthuri himself.

"I noticed something when you used his blood before, but I only confirmed it after this test," the moon elf said softly. "I was just suspicious at first. After all, the blood of a young dragon can perfectly suppress the demon plague. Although it is a little unreasonable, it is not completely impossible."

"But now I have completely confirmed that the reason why his blood was able to suppress the magic part of the plague was entirely due to these runes. There is a certain connection between them, a very close connection."

Even though Ron knew nothing about magic, he should have noticed it by now.

“That black dragon lich!” His expression suddenly changed. “Damn it! I shouldn’t have had such a fluke mentality!”

The green dragon under the old banyan tree was killed directly by the lich, and the copper dragon in the Kobold Canyon was also inextricably linked to the other. And how could a young dragon that also lived in the Delusion Land, a black dragon that lived in the Delusion Land, be an "outsider dragon"!
Ron originally thought that the golden dragon's education might be able to eliminate the connection between Aik'Thuri and the black dragon lich, but now it seems that this is just wishful thinking!
"Where is he now?"

"In the tower, You is with him," Gillianis saw Ron's shock, "but there's no need to be too anxious. Although I can't suppress the effectiveness of the rune by forcing it to change its beliefs like the Golden Dragon, I have my own way."

"As long as I am alive, Exuri will not be affected by the black dragon lich. You must believe me."

"What about suppressing the runes by changing beliefs?" Ron left the ground with his feet and flew towards the tower at the fastest speed. Gillianis followed closely behind him. The two of them quickly attracted the attention of the townspeople below.

"That golden dragon, or the one behind him, should have discovered Exuri's problem a long time ago, which is why he spent nearly ten years trying to educate him regardless of the cost," Gillianis explained. "He even made fellow dragons, who basically have no real faith, start worshipping Bahamut. After a careful search, I found a very small amount of divine magic residue in his body. That platinum dragon or his priest must have influenced Exuri in this way."

"For the better, of course."

"Now that the power of those runes has reappeared, does it mean that the influence of the golden dragon has declined?" Ron landed on the balcony at the top of the tower. An elf ghost twisted his hands in front of him, looking worriedly at the black dragon master who was lazily lying on a thick carpet.

Aikzuri's tail swayed rhythmically with the swaying of the flames in the stove next to him. There was not much fear in his eyes, just a little... indifference?
"Exure!" Ron hurried into the room on the top of the tower. As he pushed open the door to the balcony, snowflakes were swept in by the cold wind and melted in the warmth of the fire. "How do you feel now? Are you feeling any discomfort?"

"Uncomfortable? One thing - just close the door." The young black dragon yawned lazily. He glanced at Ron, and with his belly pressed against the carpet, he took two steps towards the human. As Ron's hand fell, Exuri raised his neck slightly and arched his angular head in Ron's palm.

"Don't worry too much, Ron. Teacher Gillianis said she would help me solve this problem. She has told me everything - I didn't get such a low score because I played too much and didn't review my homework." "He should at least have the right to know," Gillianis shrugged, "but I didn't expect him to accept it so easily and blame it for his poor grades."

"I'm telling you, Exuri, the runes in your body haven't affected you to that extent yet! You still need to work harder!"

"Okay, teacher." Exure swung his tail left and right. Perhaps because the movement was too large, the tip of his tail touched the fire, and his whole body twitched. "I will keep working hard."

"Master, you..." The translucent figure swayed, and she looked at Ron for help, "Sir, the master -"

"Hey, I'm fine, You, I've told you many times," Exure rolled his eyelids, "Do you think I look like I'm in trouble? The teacher has already taken care of everything for me."

"You don't look okay," Ron pulled a chair over and sat next to the reptilian black cat, "Let me guess, are you grudge?"

"I don't have any resentment. How could I dare to have any?" Before Ron finished speaking, Exure's voice rose five degrees. "I am just a tool, a tool born to be used - maybe it was even a mistake for me to come out of the egg!"

"That black dragon lich you saw, I'm sure it's part of its plan!" Axuri impatiently scratched the carpet with his front paws. As the dragon claws scratched the pattern on the carpet, Gillianis's eyebrows began to frown, but she didn't say anything to stop him.

"As for my golden dragon teacher, he must have considered me as part of his plan!" The young black dragon was silent for a moment, and his breathing gradually became heavier. "That must be the case. Otherwise, why would he keep me here and come to give me lessons regularly?"

"It will take me anywhere!"

"And he asked me to believe in Bahamut - even though he is the priest of the great dragon god, but is this really necessary? I just thought about it for a long time, and the answer is no!"

"I guess those metal dragons might want to use me as a tool and use me at the last moment!"

Axuri became more and more excited as he spoke. He stood up and looked at Ron with burning eyes. There seemed to be flames dancing in his eyes, but these flames definitely did not represent joy or excitement.

Ron was silent. Although Exuri was only nine years old, as a dragon, his mind was no longer that of a simple child. He had his own judgment on the twists and turns here.

"Then... Aikzuri, tell me, do you think I treat you as some kind of tool?" (End of this chapter)