After figuring out the root cause, Xu Yi changed the topic and said, "Is the green color in these two demon cores related to the green demon?"
He could clearly see that the cyan demon core from Lang Du was also dyed green, but not as deeply dyed as the white demon core from Hu Jinghui.
Cyan and green are quite similar. Before knowing about the green demon, Xu Yi couldn't deduce the cause from the effect, and couldn't see the clues, which is normal.
At this moment, he carefully looked at the green demon core of Lang Du, and he could naturally see the greenness imbued in it.
Little Red Carp said, "I don't know much about A Li. I only heard that Demon Race has become a green demon, and the demon core can be dyed green. And so far, Demon Race has received very few Green Demon Core. The knowledgeable people in the clan are studying it, but there are too few research subjects. The value of Green Demon Core has been raised to an extremely high level in Donghai Demon Race. If my benefactor has a favorite treasure, he can exchange it for this Green Demon Core, and he will definitely be able to get his wish."
Xu Yi smiled and said, "You took these things back, there is no reason for me to exchange them for them."
As he said this, he had an indispensable thought about the black Green Demon Core in his heart.
However, Little Red Carp is sincere, and he always has to be a little polite to avoid doing things too naturally.
What's more, he is familiar with the character of Little Red Carp.
Sure enough, Little Red Carp immediately became excited, "What did my benefactor say? Without my benefactor, I am just a small chaotic fish in the river, no different from an animal. I might become someone's meal one day. How could I have the opportunities I have today."
"What's more, I entered the Demon Palace by mistake. If my benefactor hadn't saved me, I wouldn't have survived. I went to the ruins of the Demon Palace to find these things just for my benefactor. If my benefactor didn't accept them, A Li would feel uncomfortable."
Xu Yi said, "Okay, don't talk about your benefactor. From now on, we will treat each other as brothers."
Little Red Carp kept shaking his little head, "I don't dare. A Li is not worthy. Why don't A Li call his benefactor 'Young Master' from now on? Anyway, many customs of the human race are extremely common among the large group of monsters who transform into monsters."
With the sound of "Young Master", Xu Yi thought of Yan Zi. He had been out for a long time and he really missed Yan Zi.
In response to Little Red Carp's request, Xu Yi threw Lang Du's mustard seed to Little Red Carp, and Little Red Carp refused.
Xu Yi said, "Even if you recognize me as the young master's meeting gift, you cannot refuse it."
Little Red Carp took the mustard seed and put it on his chest, and the mustard seed disappeared.
Xu Yi also learned to stick the mustard seed to his chest, and soon it disappeared. It seemed to exist under the skin and between the blood and bones, but Xu Yi couldn't tell where exactly.
And he has tried it before, and the thoughts can be sent in, but the mind cannot be opened. It seems that it was specially built for Demon Race.
Moreover, inside this mustard seed, it is not a vacuum like Sumeru Ring, but a world full of spiritual energy, which is somewhat similar to the scene in Spirit Beast Bag.
Without waiting for him to ask, Little Red Carp said, "The biggest difference between this mustard seed and Sumeru Ring is the world inside. The world in mustard seed is extremely vivid and can store monsters and open up sources of Spirit Plant. The most important thing is that there is a specific location where fresh ingredients can be stored. Master, you can see it."
Xu Yi put his thoughts into the mustard seeds, and sure enough he saw a place, divided into small squares by a light red line.
When I thought about it, it seemed to be a closed space, very similar to the feeling in Sumeru Ring.
Mustard seeds are so magical that Xu Yi cannot be used without them.
At the moment, he contained all the corresponding items in the mustard seeds, including the sleeping Ice Fire Rabbit, leaving only Soul-Summoning Banner, Primordial Sword Tooth Tiger's Demon Corpse and other valuable treasures in Blood Concealment Ring.
Xu Yi said, "Since this mustard seed can accommodate living creatures, there seems to be something wrong. I wonder if anyone among Demon Race can say anything about it."
Mustard seeds, in his eyes, are Sumeru Ring. Xu Yi felt it was a little weird that Sumeru Ring could hold living things. For a while, he couldn't explain why.
Little Red Carp said, "I've heard people say this, and the most talked about is the disadvantage of mustard seeds containing living creatures. Because once a living creature is contained, especially a living creature with thoughts, it Sumeru Ring is extremely easy to be controlled by that living creature."
"In this case, the gain outweighs the loss. Even if the mustard seeds are only used as a treasure to be transported, there is a great risk, because once the living creature contained in the mustard seeds has evil intentions towards you, it is impossible to escape from such a close-range sneak attack."
"Therefore, no one would use mustard seeds to transport or store living animals unless they are close relatives or loved ones."
"Another point is that the living creatures in the Mustard Seed are completely controlled by the person who holds the Mustard Seed. The inside of the Mustard Seed is like a Small World, and the people outside the Mustard Seed are like the masters of this world. They can use their thoughts to obliterate the living creatures in the Mustard Seed at any time. Normally, no one would take such a big risk."
"..."
Little Red Carp said a lot, it was all from what he heard, although it was mixed and not messy.
Xu Yi also understood it and believed it. In a word, mustard seeds can survive, but few people do it and the risk is too great.
After solving the mustard problem, Xu Yi began to think about the way forward again.
Originally, he planned to leave Demon Domain immediately.
Even if there are star patterns on his chest, Xu Yi does not intend to stay here for a long time. After all, he is not Demon Race, and someone might expose him.
At that time, huge risks will arise out of thin air.
However, the appearance of these two Green Demon Core made him feel quite confused.
According to the information he has received so far, there are only two methods that can dissolve the petrification of meridians, which is Demon Race's method of transforming into a demon.
One is to take the demon-transforming stone, and the other is to take the demon core of a great demon with level 2 or higher demon essence.
The latter's power is more pure, and Xu Yi's first target was originally focused on the latter.
But after seeing Hu Jinghui's methods, he basically gave up hope.
Hu Jinghui is just Fourth-order Great Demon. He is at the bottom among the second-turn demons, but he has terrifying strength.
Xu Yi still can't help but feel numb when thinking about it.
Of course, he has the demon core of Hu Jinghui in his palm, which is enough.
However, the demon core of Hu Jinghui is dyed green. How could Xu Yi dare to use it rashly?
Now, Little Red Carp said that this Green Demon Core is extremely precious among Demon Race. If it can be exchanged for precious treasures, Xu Yi will naturally be tempted.
He decided to stay with Demon Domain for the time being and exchange this Green Demon Core for later.
Of course, the city government of Old Devil Xu will not send Green Demon Core out based on understanding the situation. It seems that he really has to stay here for a while.
With this thought in mind, I heard Xu Yi say, "A Li, come with me to go out and see this Demon Domain."
Little Red Carp said, "The demon cave under our command, Pingding Demon King, is not very vast. We can only take the young master for a walk in a small area. Besides, Pingding Demon King knows that the young master has turned into a demon and seems to be interested in recruiting him. He will hold a banquet for him in the evening, so we won't be able to go there for long."