After much contemplation, Arthur suspected that the reason he couldn't increase his magical power might be related to his addiction to demon souls. He wondered if devouring souls might not only provide a taste but also fuel the growth of magic power in demons.

To test his theory, Arthur took out one of his remaining souls. He couldn't help but salivate at the sight of it, his mouth watering just like when he used to see delicious human foods. He hesitated for a moment, then couldn't resist and devoured the soul.

The soul, about the size of a broad bean, melted as soon as it touched his saliva, and the sensation was indescribably delightful. It triggered an intense feeling of joy, similar to when he consumed souls, and his body and mind were flooded with happiness. It was a moment of pure bliss.

However, the pleasure soon faded, leaving Arthur craving for more. He wanted to devour the rest of the souls, but he managed to resist the urge.

"It's dangerous! This is truly addictive!" Arthur realized, his chest tightening with fear.

Once he regained his composure, Arthur noticed that after consuming the soul, most of it had dissipated, leaving behind a special sensation. It felt like a warm flow spreading through his body, gathering at his heart, and then settling.

"Is this warm flow related to magic?" Arthur pondered and couldn't help but check his attributes in the system interface.

While he had exhausted his magical energy earlier when experimenting with "fast regeneration," now he saw that his magic energy attribute had changed to 0 (+0.3).

"What does this mean?" Arthur wondered. Was the 0.3 an increase in magical power, or was it merely the slow recovery of his magical energy? Or perhaps, it was a result of the soul he had consumed?

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If it was the latter, it implied that consuming souls could indeed enhance a demon's magical power. Arthur realized this could be both a blessing and a curse. It meant he would have to maintain a steady supply of souls not only for his system strengthening but also for the growth of his magical energy. It was a potential lifelong commitment.

To explore this further, Arthur created a new blank page and began drawing once again. This time, he sketched a pair of pants. After all, he had been running around naked for a while, and it was getting uncomfortable.

These custom-made pants matched his skin tone, providing comfort and breathability. After fitting them on, Arthur felt a sense of relief.

Flying in the air now, Arthur could explore from a different perspective. He marveled at the vastness of the abyss but also encountered enemies. These foes were mainly flying demons and insect-like demons with cole wings.

However, with his newfound strength, Arthur could handle them effortlessly. He hunted them for practice, as it improved his combat skills. He realized that he had become a demon overlord in this world.

Arthur didn't feel the need to go back and confront Nezar. Killing her would only yield a lower-level soul, and it wasn't worth the time and effort. Besides, he had noticed that the quality of souls didn't correspond to the strength of the creatures. All the souls he collected from lower-level demons were classified as "lower souls."

Life in this upper abyss world was monotonous, but Arthur had adjusted. However, he couldn't deny that the repetitive cycle was starting to wear on him. To break the monotony, he contemplated eating a soul or two every day for amusement.

One day, Arthur noticed a peculiar sight. Dozens of demons on the ground were gathered together, all heading in the same direction, running frantically. Flying demons in the air joined them, also following this direction.

The scene reminded Arthur of his time at the hatchery, where demons had acted similarly in response to a special event. There had to be something significant happening.

Intrigued, Arthur decided to follow them. As he got closer, he caught a whiff of an incredible fragrance, reminiscent of high-quality souls. It was an aroma he couldn't resist, and he flew towards it eagerly, excited to uncover its source.