The Magic Gods in A Certain Magical Index World are quite unruly. In theory, such a leap in power from Earth's various chaotic power levels to a level capable of casually destroying the universe was indeed bizarre.
But in this world, the individuals can suddenly rise from Earth-level to a level beyond the universe.
However, that's just the way it was. This universe had simply been remade after collapsing several times.
To put it bluntly, it is not that the power has risen to that level, but it was that the level below it had been lowered, leading to the subsequent plot of A Certain Magical Index, which made no sense at all.
But the existence of the Magic Gods relied heavily on the Laws of that world. When the field of magic reached its zenith, that's when the Magic Gods appeared.
The Magic God has the ability to modify all Laws.
Right now, Asahi couldn't help but feel relieved. Fortunately, after the fusion of the worlds, it can be regarded as a kind of weakening for the Magic God.
Once the world merges, due to the need for various worldviews to coexist, some things that could exist within a particular world through special powers became virtually useless once they left that world.
To give an example, it was like Sugar from the One Piece World in the past. Her Hobby-Hobby Fruit had the power to influence the memory of all living beings in the world. But this ability became invalid afterwards because the worldview had expanded.
Even though A Certain Magical Index World had an incredibly vast worldview, but other worlds are also independent worlds. Although they are not as terrifying as A Certain Magical Index World, once they fused, the power of the Magic God will also be affected.
For Asahi, as long as he mastered a portion of Whis's power, if he ever encountered a Magic God, he could simply teleport them out of the A Certain Magical Index World. Once they left that world, the Law structures are different, and the Magic God wouldn't have the ability to modify them.
At that time, they would be nothing more than somewhat powerful life forms.
Currently, Asahi feels that it is better for him to play it safe. Even though he had directly sealed off this channel, he still took precautions, just in case.
The existence of the Demon God is incredible, so Whis's power is crucial for him. After all, in the event of the Magic Gods' arrival in that world, he could defeat them.
However, Asahi had no intention of confronting the Magic Gods in the A Certain Magical Index World.
In that world, the Magic Gods could directly erase the world with their thoughts. With this cheating ability, Asah has never thought that he can directly defeat the Magic God in that world.
Unless he inherits all of Whis's power, only then would he be able to confront them head-on. After all, the Magic God affects the Laws and could easily erase the world by exploiting this ability rather than relying on brute force.
In contrast, the Dragon Ball World is the opposite.
The powerful beings there didn't need to use rules to end the world, they could simply blast it into oblivion. This wasn't about wielding the authority of Laws, it was about brute force. Even characters like Beerus and Goku could easily achieve this, and as for Whis, he was in a league of his own
Although the Laws couldn't affect Asahi in the A Certain Magical Index World, they would have to use Laws that favored them.
It is impossible to use the Laws to directly erase Asahi's existence, but it is still possible to create a favorable environment, increase their strength, etc…
Therefore, if Asahi wants to travel in the A Certain Magical Index World freely, he would need to have control over most of Whis's power.
Of course, that was the level of power he needed for absolute freedom. If he only wanted to survive, it would be much simpler.
With just a bit of Whis's power, combined with his current abilities, Asahi could indeed use spatial manipulation without any restrictions.
But if he encounters a Magic God, once they block the space, he can't run away at all.
Only by mastering a small portion of Whis's power would he be able to destroy the space using brute force, leveraging the Space Law he already possessed to escape.
Because of these factors, after thinking about it, Asahi decided to temporarily seal the two worlds. Even for a world like Demon Slayer, he didn't intend to enter directly, because he wouldn't be able to handle it.
Once a Magic God suddenly appeared his current strength would be too weak, leading to a tragic outcome.
Although it was unlikely for a Magic God to suddenly arrive given the current situation, it was still necessary to have some means of self-preservation just in case.
Although Asahi isn't overly cautious like a certain hero, he also didn't want to act recklessly and thoughtlessly.
So caution is necessary, but it didn't have to be taken to extremes. This is the first time Asahi has encountered such a tricky world.
After all, the extent to which not training would lead to disaster was something Asahi had never experienced before. In the past, he had always been able to sweep through his challenges easily.
After entering Dangai, Asahi began to train.
Fortunately, Whis's ability relied on perception to improve, moreover, another subsystem that was turned on in the past is actually useful, which is, the Law Subsystem, as it allowed him to perceive Laws.
When Asahi used this subsystem before, he had found it quite uncomfortable to be honest. All he perceives is the Law of Fire and even that had been extremely challenging.
Although it has improved his flame significantly, mastering the Law of Fire was a daunting task, let alone other laws.
The power of Law seemed to have no limits, and it was as if he was exploring the bottomless abyss, that's the feeling Asahi has experienced back then.
But the current Asahi has Whis's ability now, although it was just a tiny fraction, it still greatly helped him. He could even use Whis's ability to perceive the Law, and use the power of the law to perceive Whis's ability.
Only now that the full capabilities of this subsystem had been fully revealed.
In this way, Asahi has stayed in Dangai. According to the Dangai's time, one day outside equated to two thousand days here, which means that it is a little over five years inside.
This time, Asahi spent more than five thousand years in Dangai, which, when converted, was over a thousand days outside, or about three years. This is the longest time Asahi had ever spent inside Dangai.
But on the contrary, for Asahi, it didn't feel like much time at all. As he was fully immersed in perceiving the Laws and understanding Whis's ability.
After waking up, Asahi couldn't help but marvel. He had always been curious about those individuals who could endure long periods of seclusion without losing their sense of time, but now he understood, it's because they simply have no sense of time at all. It was like sleeping at night, and when they woke up, it was already morning. Several hours had passed as if they hadn't experienced it at all.
For him, more than five thousand years felt like only a moment, and he had lost all sense of time. However, he had only mastered ten percent of Whis's ability.
This also made Asahi somewhat frustrated. For more than five thousand years, he had only reached ten percent, which is truly incredible.
(A/N: Regarding these settings, I could only change it like this, otherwise the Magic Gods would have been too difficult to deal with! Please understand!)