The bandits that had attacked her earlier arrived. They were fools who simply gave chase without seeing where they were going. Gaelion released a breath attack, immediately reducing them to rotting ashes. Like this, Gaelion started raising the baby. With the help of the other monsters inhabiting the area, he looked after Windia, while protecting his land (side note: these monsters are Gaelion’s lovers). Because of that, Windia learned to treat monsters as family. Gaelion had many children, and having a Demi-Human among them didn’t hurt. Anyways, Gaelion awkwardly brought up Windia. He learned to treat her with love, but a dragon raising a Demi-Human was still difficult. Melromarc had always had a tradition of Human Absolutism, and Gaelion somehow wanted to give Windia human happiness.
But because of that, one day, Gaelion left Windia in the care of the other monsters, and went on a walk. A person wielding what appeared to be a magic sword, and his companions, appeared. Occasionally, some humans attack Gaelion’s lair in search of his treasure. Though he understood human language, there was no real reason for Gaelion to converse with these thieves. With the cry of a beast, Gaelion attacked those humans. But his opponents were too strong. The Humans had somehow obtained an anti-dragon sword, and every hit from it put Gaelion in great pain. Gaelion realized that his opponent was one of the summoned humans, “The Hero of the Sword.” The fight itself took around 30 minutes. The sword’s properties put Gaelion at a disadvantage, so he wanted to retreat. But in his cave was Windia, and the monsters caring for her. He realized the monsters would probably be fine. They were inhabitants of this mountain, and had the ability to run. But Windia was different. If this cowardly fragment of the Dragon Emperor were to run there, then she would probably confront the Hero and perish. He thought back to what his crime was. It was his very existence. Just by protecting his territory, he attracted greedy humans vying for his treasure. Gaelion felt great resentment. In the last moments of his life, Gaelion stared at the Hero of the Sword’s face. Those weren’t the eyes of one who was prepared to die fighting. He was killing him as if it were simply a job. While Gaelion was fighting with his life on the line, this man was simply doing a job. The irrationality made him think he was going insane. He thought of Windia’s troubled, crying face. Windia’s slightly lonely face when he went out. Windia’s happy face when he returned home. He could no longer see any of them. The Dragon Emperor fragments were immortal. But, when will he revive? There’s no guarantee he will ever see Windia again. If someone were to extract his core and use it, then revival would be impossible. And with those thoughts of anger and despair, Gaelion died.
Luckily, his core was not taken. From within the core of his lifeless body, he quietly waited for his resurrection. He waited, and waited, even when his body started to rot. Gaelion wished, if only someone came by to help take on his soul. But that wish never came true. After the Hero of the Sword killed him, the villagers came to his cave for his treasure. They slaughtered all the monsters there and sold Windia along with the eggs there. Eventually, he stopped thinking entirely, and his core’s instincts took over. He could no longer hear rhyme or reason. His body began moving against his will. Gaelion could no longer perceive the outside world or speak. And all that surrounded him was tainted earth. Windia and the others were most likely dead. When he finally regained his senses, he witnessed a Filo Rial eating his core. As expected of a Filo Rial’s body. Firo was able to contain his power and keep control of her body. It was the end. He no longer cared for reputation or pride. Just one hit was enough. He just wanted to give the Sword Hero some form of retribution. But the one he found was the hero of the Shield. He watched and waited for his opportunity from inside Naofumi’s shield. And when Naofumi conveniently obtained a Dragon’s egg, he tried to shift his conscious to. But he never expected to find Windia alive there. His luck was good.
Gaelion’s new goal in life was to gather the fragments and obtain the strength of the true Dragon Emperor. He wished to become strong. His vessel also wished for this. The waves of calamity was causing the fragments to gather. They were gathering to prepare for a large event. If he won fights against the other fragments, then he could gain more and more of the Emperor’s power. He made a deal with Naofumi that if he assisted him in becoming stronger, then he would grant upon him the knowledge of the Dragon Emperor. Which included forgotten knowledge on how to break the Lv. 100 cap.
Some part of Dragon Emperorer's core was then eaten by Firo and other part was used in Naofumi's Barbarian Armor. The core seems to resonate with Legendary Shield's Curse Series.
Gaelion is a single fragment of that Dragon Emperor, that’s why he can currently exist. Originally, he was going to look for a different retainer, but in that situation so he didn’t have control over his common sense.