Lina didn't understand the situation, but she decided to not interfere since it wasn't related to her.
"Usually, it should be impossible for us to come in contact again after I died, but since I left an unsolved matter here, I can use a loophole in the rules to come."
Tofesh was deliberately speaking like if he had returned from a world of the dead because saying that he came from a higher universe was forbidden.
However, Yale could understand correctly the situation, so there wasn't any need for them to clarify it.
"The sword I made for you is flawed. My pride won't let me forget about that matter, so I needed to return to solve that problem. However, right now it is impossible for me to improve it since I am just a strand of consciousness controlling this body."
Tofesh smiled while saying that because he was leaving clues in his speech to say what he couldn't say, and he noticed that Yale understood.
For a mere trace of consciousness to control completely the body and soul of a Law God, the level of such an expert should be incredibly high.
"Then, my deceased friend, how can I help you to solve your last wish before returning to the place where you belong?"
Yale followed Tofesh's setting, but Tofesh understood that Yale was doing it on purpose.
"I can't improve it for you, and there isn't a single person in this universe capable of doing it. Thus, I will tell you the method, and you will be able to improve it yourself. The sword was created with your help, so we two are the only two people who can improve it, and since I can't do it anymore, you shall do it yourself!"
Tofesh waved his hand, and a stream of light flew towards Yale and fused with his soul.
"You will be able to obtain the knowledge after I disappear. Remember, I just gave you this knowledge to improve your sword and fulfill my last wish. This isn't for your benefit, understood?"
Yale understood those words perfectly. Tofesh was meaning the opposite of what he was saying. He was remarking that Yale could only improve the sword and that he didn't want to help Yale with it since it was just fulfilling the last wish.
Thus, Yale understood, that the knowledge should have other functions that Tofesh couldn't mention due to some rules, but that Yale should be able to deduce by himself.
Moreover, it was clear that Tofesh was doing it for Yale's sake, stating the opposite was just to mean that his previous sentence was the opposite to what he said.
There were too many rules when interfering with lower universes, but Tofesh was good seeking the loopholes. It was correct to interfere with a lower universe to solve a problem left behind like Tofesh was saying.
It wasn't something especially correct, but it wasn't forbidden either, so it was a gray zone.
However, helping people of a lower universe with knowledge of a superior universe was forbidden, but Tofesh was just solving the problem with the sword he created, and if Yale managed to extrapolate that knowledge to do something else, it wasn't his fault.
The loophole was simple, but without a great degree of understanding to each other, it would be difficult for both parties to understand each other without saying something that was forbidden.
Moreover, extrapolate the information wasn't easy at all, even using it normally would be almost impossible for others, so it also depended a lot of the one receiving it.
Tofesh trusted Yale and knew that he was able to understand it and even extrapolate the information to do other things.
The conditions were harsh, but the Celestial Knowledge was a huge cheat that could help Yale in that aspect; that was one of the motives for Tofesh being so excited when he saw that Yale could use the Divine Knowledge.
Moreover, the method he transferred to Yale didn't exist within the universe, and the difficulty would increase a lot for those who were tied to it, but those who broke free from the shackles of the time weren't truly bound, so the difficulty was far lower.
Yale just was a perfect match to that loophole and Tofesh was someone capable of exploiting that loophole to give Yale the best benefit without breaking the rules.
It was the same that when they forged the Space-time Judgement Sword if they hadn't been working together, they wouldn't have managed to craft it.
"Thank you Tofesh for entrusting me to fulfill your last wish. I will definitely fulfill it."
Yale had yet to access that information and didn't know the information's true value, but he knew Tofesh, and if he went to give it to him, Yale would trust completely that information and use it to its fullest.
"My time is almost over. It has been a pleasure meeting you again, my friend."
Tofesh knew that he didn't have any more time, but he knew that just that bit of time had been crucial as Yale obtained something that no one in their universe had.
"I am glad to have met you again."
Yale showed his punch in front of Tofesh, and the latter did the same.
When their punched touched each other, both of them spoke at the same time.
"Goodbye, my friend. I hope to meet you even if it is on a different life."
Those were the words they said to each other when Liye went to reincarnation, so it wasn't weird that they said it again when bidding farewell to each other.
However, for both of them, that was a promise that they would meet again. Yale still didn't know how to accomplish that, but he was confident in doing it someday.
Tofesh disappeared, and seconds later the king recovered the control of his body.
The king was about to ask what happened since he felt that he had passed away for a short while, but before he could ask, Yale shouted while the Celestial Knowledge activated on its own.