"The demon world is different from the human world, in the demon world, the monsters like to use spars as trades, the spars are basically the same as the crystal nucleus, and what they have in common is that there is energy in it for cultivators to absorb, but the higher the level of the crystal nucleus, the stronger its energy is, and humans can't control the violent beast energy in it, but the demon beast and the demon beast can, so the demon and the demon like to eat these crystal nuclei.

The spar is different, the energy in it is very pure, and humans can absorb it unscrupulously without worrying about being counterattacked, but these things are very few in the human world, but there are many in the demon world. The crystal nucleus is divided into grades according to grades, but the crystals are divided by color, from low to high: red spar, orange spar, yellow spar, green spar, cyan spar, blue spar, purple spar, a total of seven kinds of spars.

The energy in the red spar is almost zero, which is why monsters like to trade it, the energy in the purple spar is the most surging, but it is also the most difficult to find, and the blue spar that ranks sixth is also very rare.

Red, orange, and yellow, three kinds of spars are very common in the demon world, and these three spars are used the most for trading. I've said so much, you should get the idea, right? ”

Su Yingxue nodded, Honglian said so much, she also had a simple understanding of the currency transactions in the demon world, which probably meant that it was best to have red crystals in exchange, and the fourth-order crystal nucleus was also considered to be of the upper class in the human world, and it was also very luxurious and precious in the demon world, so she still didn't take it out casually, so as not to be targeted by these monsters.

But if she didn't use a high-level crystal nucleus, and she and Red Lotus didn't have any spars to use, would they be destined to sleep in the barren mountains tonight?

Su Yingxue was a little embarrassed for a while, and just when she was depressed, the lewd uncle had already gotten up and came to them.

"Little sister, I see that you are so distressed, but you forgot to bring money when you went out? Big brother here's a spar, do you want it?"

The obscene uncle took out the red spar and shook it in front of Su Yingxue: "Cute little sister, the big brother gave you the red spar, can you do something very happy with the big brother?" ”

This demon spirit completely treated Su Yingxue as a little doll who ran away from home at the age of twelve or thirteen and didn't know what was going on, although what he said was good, but there was still an evil desire in his eyes that couldn't be hidden.

Su Yingxue's smart and beautiful eyes spun around. retracted his indifferent expression, stopped the red lotus who was about to make a move, and smiled sweetly at the obscene uncle.

"The master has taught you to be polite to the elderly, you are much older than me, calling you big brother is a bit out of the rules, it is better to call you uncle!"

The obscene uncle had already been dazzled by Su Yingxue's smile, and when he heard her talking to him, he was so happy that he was about to fly, and he didn't care about these so-called titles at all.

"Okay, good, as long as you're happy, little sister, you can call it anything."

The obscene-looking demon spirit stretched out her arm, trying to touch Su Yingxue's smooth face, but she avoided it, and the demon spirit looked a little embarrassed.

"Uncle, you just said you were going to give me the red spar, right? How many of these hedrons do you have? Su Yingxue opened her big shining eyes and looked at the strange uncle in front of her curiously.

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