I am the Executioner Dragon, but a cute mod.

After awakening the ability to generate and reverse spells, Xiao Su Nuo's daily life changed from spending all day learning various kinds of knowledge to practicing generating spells and improving spell efficiency in the morning, and learning various advanced ideas under Amelia's guidance in the afternoon.

Without the sound of Xiao Su Nuo reading aloud, Lilith finally returned to her wonderful life of sleeping until she naturally woke up. However, the pain did not disappear; it was simply transferred to She Nuo.

Trainees should never practice their techniques inside the villa, as it would only damage the items and furnishings and increase Amelia's workload.

So, to avoid troubling Amelia, the sensible Sukuna moved the training ground to the lake. Every day, as soon as the sun rose, little Sukuna would arrive at the lake early and use spells on the water.

The invisible slashes created splashes on the lake's surface, and the scorching flames made the lake boil. Every time he used the spell, Xiao Su Nuo could feel that his understanding of the spell was deeper. This feeling of mastering power fascinated him and made him more and more diligent.

However, this diligence came at a cost to She Bie.

As a legendary great demon, Jabami, though not human, maintained a healthy lifestyle throughout his long life.

I get a full ten hours of sleep every day, never sleep in late in the morning, and after breakfast, I immediately delve into my surgical techniques. I rest at noon, close my eyes and relax in the afternoon. Until bedtime, I maintain a good mindset and never carry fatigue into the next day...

However, this healthy lifestyle was ruined by Xiao Su Nuo. Every day, just as dawn broke, a loud bang would be heard on the lake, and She Nuo would be forcibly awakened.

If this had only happened once or twice, Snake could have tolerated it, but this situation lasted for a whole month. During this time, Snake had no peace and his good daily routine was completely disrupted.

Finally, one day, the Serpent could no longer tolerate Kosuna's disturbing behavior. Taking advantage of a gap in Kosuna's attack on the lake, it surfaced and shouted at him:

"You brat, do you really have to practice your spells so early? I'm sleeping here! Do you know how much harm your actions are causing me? Stop practicing!"

Upon hearing this, Xiao Su Nuo, who was about to unleash a few slashes, froze in place. He looked at the vertical pupils of the snake-like creature's eyes, which, compared to their previous crimson color, now resembled bloodshot eyes due to lack of sleep.

Xiao Su Nuo immediately realized it was his fault, lowered his head, and said apologetically:

"I'm sorry, I didn't realize that... Starting tomorrow, it won't be like that anymore."

"real?"

The snake expressed doubt about this statement, saying:

"Then tell me, what if you can't do what you say you're going to do?"

"Can't do it? Impossible."

Xiao Su Nuo decisively rejected this possibility. He stretched out his right arm, clenched his fist tightly, and after feeling the terrifying power within, he laughed:

"My technique's efficiency has reached 80%, which is enough for me now. Perhaps I can begin to research the 'domain' you mentioned earlier..."

The serpent remained silent, observing the confidence and pride on Xiao Su Nuo's face and sensing the immense magical power flowing within him. After a long while, it finally spoke:

What does "eighty percent" mean?

“…………”

Xiao Su Nuo was stunned for a moment, then helplessly rubbed his forehead...

In the days that followed, just as Xiaosu Nuo had said, he stopped studying spells in the mornings and instead focused on how to expand his domain, while he continued to study knowledge in the afternoons.

Without any disturbances, Snake was finally able to have a good routine again.

However, Kosuke still had many questions about the concept of a domain, so whenever he had time, he would ask Hebi for guidance.

The snake had no reason to refuse, especially after Xiao Su Nuo returned its sleep time; it was happy to answer Xiao Su Nuo's questions.

"Regarding the domain, it is actually a small enclosed space formed by the spellcaster projecting their innate spells into reality."

Within a domain, a sorcerer can weaken enemies, and their attacks are guaranteed to hit. Therefore, a domain is practically every sorcerer's trump card...

After hearing Shenu's explanation, Xiaosu Nuo seemed to be thinking. Seeing that Xiaosu Nuo did not ask any more questions, Shenu did not bring it up herself, but instead sank to the bottom of the water.

Days passed in this way, and the snake thought life would continue uneventfully. But just seven days later, the little snake found it and said:

"I've learned how to expand my domain!"

"I see, that's good."

She Bian didn't seem too shocked. After all, Xiao Su Nuo was a genius who could comprehend the Reversal Technique on his own. It was only natural that he could learn it, as it was just a matter of expanding his domain.

"Then let me see your field."

As he said this, Snake-Bear stood aside and waited quietly.

After taking a deep breath, Xiao Su Nuo formed the Yama Heaven Seal with both hands and whispered:

"Domain expansion".

As soon as these four words were uttered, the magical power within Xiao Su Nuo's body poured out, reflecting his life-giving technique in the real world.

[The Demon-Slaying Chef]

Piles of white bones rolled down, and the grass beneath their feet instantly turned into corpses. On the mountain of corpses behind them, a shrine made of flesh and blood stood silently.

Seeing this, the snake-like creature that had poked its head out of the lake was momentarily unsettled. Looking at the little Su Nuo standing atop the skeleton, it frowned and said:

"How come this is... an open area?"

Upon hearing this, Xiao Su Nuo was puzzled:

"Are there any problems with open domains?"

"This is a big problem."

Snake-Bun sighed. He had initially considered Sukuna a genius, but he hadn't expected Sukuna's domain to be an open domain. In Snake-Bun's understanding, Sukuna's future was already locked, with absolutely no room for improvement.

"First of all, the key elements of a domain are: a closed space that is advantageous to the sorcerer, in which the opponent can be weakened and the sorcerer can be strengthened."

"An open domain, lacking any sense of enclosure, means the enemy can escape at any time. Besides, your domain is only a radius of thirty-five meters. Such a small area, coupled with its openness... sigh."

She Ni sighed. Although he didn't say it explicitly, his regretful expression practically said, "Your field is practically nonexistent."

Receiving such a terrible evaluation, Kosuke Nao, who had originally wanted to show off her newly acquired skills to Lilith and Amelia, felt like her world had collapsed.

He gazed at his own realm, filled with death and desolation, at the piles of white bones and the huge bronze bell on the shrine swaying in the wind.

"How is this possible? How could my domain be so inadequate?"

Xiao Su Nuo took a deep breath, then looked up at the enormous head in front of him.

As the future King of Curses, even though Sukuna is becoming more like a model student under the tutelage of Amelia and Lilith, he still possesses his own pride as a genius of sorcery.

At that moment, all four red eyes fell on the snake, and Xiao Su Nuo said, word by word:

"...Are you lying to me?"

This statement, though seemingly a question, is actually a statement. With his pride, he would never deny himself based on the one-sided opinions of others; practice is the sole criterion for testing truth.