"Spell me, dance a beautiful dance for me, Caster."

In order to study this spell, Weiyun directly used one to experience it, although Miss Isaac said that any kind of request is fine, but Weiyun is still very measured, and excessive requests can't be mentioned casually.

"It's not too much to dance, is it?"

Weiyun smiled and asked Miss Isaac, as a rare great magician in the world, Miss Isaac still has a certain resistance to the spell, so although Weiyun has already used the spell, the other party was not forced to start dancing by the spell at the first time.

"Alas~ The concubine thought it would be something more interesting, but it turned out to be just a dance?"

Miss Isaac sighed and shook her head, looking a little disappointed.

This makes Weiyun feel a little full of black lines, what else can it be interesting?

"So, master, do you want to come and dance with the concubine?"

After a slight complaint, Miss Isaac set up her hand and invited Weiyun with a smile in her eyes.

"No, I'll summarize the feeling of using the spell just now, I always feel that I will be able to figure out its mystery soon."

Weiyun did not hesitate to refuse the invitation to dance together, and directly left Miss Isaac there, burying his head and continuing to tinker with Yanfeng Lizheng's "unicorn arm".

“......”

I don't know why, Miss Isaac feels that she seems to see some shadows of herself in herself, the master.

Back then, she was so honest and pragmatic, and she devoted herself to research, and it was because of this that she was alone until she died.

"Alas~ This is probably what excellent people have in common."

With a sigh, she let go of her body and danced to her heart's content.

As a noble single aristocrat, Miss Isaac actually tries some music, dancing and other pastimes when she is fine, so she dances not badly, but no one has the opportunity to appreciate her dancing.

And Weiyun, who had the opportunity to appreciate, devoted himself to the study of a "unicorn arm".

"Probably concubines are born unable to attract the attention of the opposite sex, what a sad fate."

Accompanied by poignant music, Miss Isaac sighed with self-pity for the injustice of fate, how sad it is that she is such a perfect woman and cannot be loved by others~

"I see!"

Wei Yun stood up violently, interrupting Miss Isaac's self-play, and he made a new discovery.

And just now, there was a pair of "ask the world, what is love, and teach people to live and die." Miss Isaac, who looked complaining, immediately changed her expression and quickly came over.

"How? What do you think? What's new? ”

Looking at her excited expression, you can understand, what kind of bullshit love, how important is it to study and research?

In fact, if there is no limit, it will definitely be much easier to leave the research of the spell system to Miss Isaac for study, after all, the knowledge obtained from the Maki family is very complete, and with Miss Isaac's level, it will soon be able to thoroughly understand it.

However, in order to prevent the spell system from being directly cracked by those powerful god magicians, so as to completely break out of the master's control, a ban on the study of spells is engraved on the rules of the Holy Grail War, so the servants who are summoned by the Holy Grail and bound by the spell cannot conduct research related to spells.

So this matter can only rely on Weiyun himself to study, fortunately, the Tong family is the creator of this set of things, Weiyun has carefully studied it before, and now after real experiments, and is not afraid of waste after thorough decomposition and analysis of several spells, Weiyun finally figured out the principle of this spell.

"You can't listen to it, and although I can write a spell now, I still can't help you lift that ban."

Looking at Miss Isaac, who came over excitedly, Weiyun spread his hands helplessly.

He really didn't lie to the other party, after all, the entire Holy Grail system, the old bug is mainly responsible for this part of the research, although he also has some records of the big rules, but they are all miscellaneous knowledge, maybe the other party himself is not completely understood.

After all, although the three are cooperating, the technology is not transparent.

"Oh~Why is it like this~"

Miss Isaac's enthusiasm faded in an instant, and she returned to the corner to feel sorry for herself.

"The sky is not old, the love is inexorable, the heart is like a double wire net, there are thousands of knots~~~"

This guy didn't know why, and suddenly began to indulge in the wonderful artistic conception of ancient poetry.

Weiyun felt a little crying and laughing, sure enough, the brain circuit of a genius is incomprehensible to a "ordinary, ordinary" person like him.

Looking at Yan Fengli's bloodied arm that was being made by him, Weiyun used a healing magic to help the other party stop the bleeding, and then began to transfer the remaining spell on the other party's arm.

The technique of transferring the spell is still very simple, even if it is a forced transfer without the consent of the other party, and it can be easily done by Weiyun who has eaten through the spell system of the Ji Tong family.

And even when I didn't eat it well before, the method was also recorded in the information of the Tong family, and there were still a lot of back doors left by the old bugs.

"Let's spare this guy's life first, for the sake of him doing so much for me."

Speaking of Yan Feng Lizheng, who had been knocked out by him several times, Weiyun directly threw this guy into the warehouse, and then arranged for a few puppets to guard here, and then directly ignored this guy.

Anyway, with this old man's physique, he won't die easily, and it will be no problem to survive until the end of the Holy Grail War.

And although Weiyun still keeps his life now, maybe when he will feel that keeping him is a disaster again, it is better to kill him.

"This spell can also be used as a source of magic, but it has opened a whole new door for me."

Weiyun directly consumed a spell and released an enhanced magic, and the magic released with this spell was almost the same as the magic released with the magic power of Dayuan.

After all, this spell is essentially a kind of convergence of great source magic power, and it can perform the function of commanding the Servant only because it is connected to the Holy Grail.

However, to Weiyun's disappointment, this thing can't be directly absorbed by the system as energy, just like he can use the Great Source Magic to use magic, but he can't directly call the Great Source Magic to charge the system.

However, this spell can help Weiyun a lot, and when combined with the ability to mobilize the magic power of the Great Source, it is simply something tailor-made for Weiyun.

Weiyun directly wrote a spell that disconnected from the Holy Grail, this spell no longer has the ability to rely on the Servant of the Holy Grail's command, but it still retains the role of storing the magic power of the Great Source.

In other words, now this brand-new spell has simply become a mana storage device, and it is completely feasible for Weiyun to mobilize the mana of the Great Source to transmit mana to this mana storage device!

This also means that even if Weiyun leaves this world, he doesn't have to worry that his magic tricks can't be used anymore, because he can hide the magic power of Dayuan in the spell he wrote and smuggle it away!