Arthur had been deep in thought lately. He wondered what would have happened on that lava river if Nezar, the spider demon, had used her magic against him. He believed that he might not have made it out alive. But strangely, Nezar hadn't used any magic at all. In fact, during his journey in this strange world, Arthur hadn't seen any demon use magic, which puzzled him.

Arthur knew that demons, including himself, possessed the attribute of "Magic Energy." It was a part of their nature. So why wasn't anyone using magic? He had a few guesses.

One guess was that lower demons like those in this upper abyss world might have too little magic power to use it effectively. Another guess was that even if they could use magic, it might not be strong enough for them to bother. Demons might prefer physical combat over magic.

Arthur's final guess was that demons in the upper abyss world simply lacked knowledge about magic. Education and learning might be rare in this chaotic place. Perhaps, the upper abyss demons only gained magical knowledge when they advanced to the lower abyss, which would explain why Arthur hadn't seen any higher-level demons here.

The more Arthur thought about it, the more he liked the third guess. If other demons weren't using magic, it meant he could get ahead by mastering it. Arthur believed that he could learn magic skills, even though he was different from the other demons and had his own way of evolving.

Feeling a sense of intellectual superiority, Arthur knew he could outsmart and outfight most demons in this world. With his IQ and strength, he was unstoppable. He was excited about what the future held.

But first, he needed to ensure a steady supply of souls for his experiments. Arthur's first plan was to use the Extremis virus he had acquired. He needed about 100 "complete inferior" souls to exchange for the Extremis virus, a virus that could greatly enhance his physical abilities and possibly grant him the superpower of "fast regeneration."

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Arthur entered a ruthless phase, hunting down demons and monsters relentlessly. He didn't just kill for food but also to collect their souls. Weaker demons and monsters who crossed his path met a grim fate.

Sneak attacks, ambushes, and traps became Arthur's tactics. His goal was to harvest as many souls as possible. Many of the creatures he encountered weren't cunning or experienced enough to survive in this harsh environment, making them easy targets.

After about four days, Arthur had gathered around 120 low-level souls. It was time to put his Extremis virus transformation plan into action. In a safe hideout, he opened the system interface and saw the injection gun ready for use.

Arthur hesitated for a moment; after all, this was a virus. But he chose to trust the system and injected himself. The moment the blue liquid entered his body, an intense burning sensation spread throughout him, quickly turning into excruciating pain. His cells began to proliferate rapidly, his body expanding, and his muscles, bones, and organs growing stronger. It was agonizing, but it was also transforming him.

When the pain finally began to ease, Arthur realized he was no longer a "little demon." He had grown significantly, standing at about two meters tall, with muscles bulging all over his body. His demon wings had also expanded to over three meters in wingspan, his horn had curved from his head, and his claws had grown sharp.

Arthur's tail was thicker and longer, and he felt incredibly powerful. Checking his attributes, he saw a massive increase:

- Name: Arthur- Race: Demon- Bloodline:7 possible route- Devil Name:????- Form: Mature- Order: Top level- Property: Dark- Strength: 66- Speed: 35- Magic Energy: 9- Activity: 74- Loading material: Extremis virus, alien tail, demon wings.- Skills and Ability: Fast regeneration (virus enhancement)

Arthur was astounded by the 50-point increase in his power, a 20-point boost in speed, and the significant boost in activity. But the most exciting part was the new skill, "Fast Regeneration."

He couldn't resist trying it out. With a wave of his hand, he could control a stone, making it float and fly wherever he pointed. It felt like telekinesis. However, he soon felt a tingling sensation in his head and realized his magical energy was being consumed.

Arthur was puzzled. How could he use magic when the Extremis virus hadn't improved his magical attributes?

Note:the deeper you are in the abyys the stronger the demons.He is in the highest flour right now