"Is there any problem?" Ma Feifei frowned and looked at the spirit crystal bag in his hand, and didn't notice any difference, but the color was not the color of the cloth bag, but dark blue.

However, this kind of cloth bag of different colors is all too common, and many cultivators with a girl's heart will make their space rings or space bags their favorite colors, which is not unusual.

Yu Qingyang didn't speak, reached out and took the spirit crystal bag from Ma Feifei's hand, and stared at the spirit crystal bag with a slight frown.

"There's a smell on this bag that's so familiar, I seem to smell it somewhere. Yu Qingyang wrinkled his nose and said suspiciously.

"Shouldn't it?" Ma Feifei didn't believe it, it's not that he didn't believe Yu Qingyang's words, it was really impossible to believe it! Yu Qingyang had met Ma Feifei in the Jiuju Mountain since he was born, and according to calculations, except for the Jiao who was suppressed in the Leifeng Tower, Ma Feifei should be counted as the second person known by Concubine Qingyang.

As for the back, not to mention, Yu Qingyang follows him every day, almost whoever Ma Feifei has seen Yu Qingyang, Ma Feifei is sure that he has not seen Yihe on the Canglong Continent, so it is impossible for Yu Qingyang to know Yihe.

Yu Qingyang shook her head, the doubts in her eyes became deeper and deeper, and with one hand, the Qingshuang sword was automatically unsheathed and held in her hand.

"What are you going to do?" Ma Feifei asked with a little surprise.

"I'll try it first. As soon as Yu Qingyang's words fell, he lifted the Qingshuang Sword and stabbed it towards the spirit crystal bag.

"Chop!"

Unexpectedly, the Qingshuang Sword did not pierce the spirit crystal bag, you must know that this is the artifact Qingshuang Sword, and according to Ma Feifei's knowledge, the Qingshuang Sword of Yu Qingyang belongs to a relatively high grade among the artifacts.

A space bag like this would generally not be able to resist the attack of such a high-level artifact, but the result is good now, and the spirit crystal bag in Yu Qingyang's hand is intact.

And so it was. Yu Qingyang let out a sigh of surprise.

"What do you mean?" asked Ma Feifei suspiciously.

"This space bag is made of dragon tendons, dragon tendons are the hardest parts of the dragon's body except for dragon bones and teeth, and has strong contraction, if the space bag made of dragon tendons does not use all its strength, even high-level artifacts cannot cause any damage to it, and there is a space bag made of dragon tendons in my space ring. Yu Qingyang looked at the space bag in his hand and glanced at the space ring on his other hand.

"Hum~"

The ring glowed faintly, and there was an object floating out of it, which was a new space bag, but this space bag Ma Feifei had never seen Yu Qingyang use it.

"Space bag made of dragon tendons......" Ma Feifei glanced at Yu Qingyang, guessing that she should be more sensitive to this kind of space bag, after all, Yu Qingyang herself is also a dragon clan, and seeing the dragon of her own clan being pulled out of the dragon tendon to make a space bag, she will feel a little uncomfortable in her heart.

"Moreover, the dragon tendon on this space bag gives me a very familiar feeling, as if the owner of the dragon tendon knows me. Yu Qingyang said with a frown.

"Do you know ...... master of the dragon tendons" Ma Feifei looked at the space bag in Yu Qingyang's hand, and was slightly shocked in his heart, Yu Qingyang was born after the ancient times, and he was still an egg, and he didn't break out of his shell until he met Ma Feifei, at this time, the dragon has long been extinct, how can he know other dragon clans?

The only thing that is likely to feel familiar is her parents, and only the breath of her own biological parents can span 30,000 years.

The most important thing is that this spirit crystal bag was brought back by him from the Doushu Continent, according to the Canglong Spirit, when Zhang Ke took over the Canglong Continent, the previous calligrapher directly took away all the cultivators on the continent who stepped into the realm of immortals.

There may not be no parents in this.

So......

Ma Feifei didn't dare to continue imagining.

"Strange, why is it so familiar?" Yu Qingyang didn't seem to understand why she felt this way, but you asked her to explain why she couldn't explain it, and a person began to stare at the spirit crystal bag and think.

Ma Feifei stepped forward and casually took away the spirit crystal bag in Yu Qingyang's hand, and pretended to be angry: "Do you want to swallow the spirit stone in this alone? Let me tell you, according to what we said before, fifty-fifty will be divided, and no one will want to take advantage of anyone!"

When Yu Qingyang heard this, his brows subconsciously furrowed, and he said dissatisfiedly: "No! At the beginning, the number of spirit crystals we invested was the same, but then I added a lot of spirit crystals myself, so it's unfair to divide fifty-fifty, I have to take more!"

Ma Feifei shrugged his shoulders and asked, "Isn't it a lie?"

"I should take ......" Yu Qingyang's blurted out words instantly retracted, staring at Ma Feifei with a puzzled expression, and said with a look of confusion: "Are you going to set me up again?"

Ma Feifei looked calm and did not speak.

This time it was Yu Qingyang's turn to hesitate, biting his fingers and staring at Ma Feifei, he hesitated for a while, and then said weakly: "Or, let's score three or seven points this time?"

"Okay! Ma Feifei agreed.

"Me seven?"

"You Seven!"

"Hee-hee...... No, let's talk about it first, who has the most points between three and seven!"

“......”

This time, Ma Feifei didn't do anything in mathematics, and happily divided the 15.6 billion spirit crystals into 11.1 billion spirit crystals for her, but for convenience, Ma Feifei touched the spirit crystal bag that Yihe gave him.

Yu Qingyang was very happy to get the spirit crystal, and forgot about what happened just now, while Ma Feifei pretended to have everything done and turned around and walked towards his room directly, for fear of being stopped by Yu Qingyang.

"Could it be as he guessed?" Ma Feifei thought to himself.

......

The next day, the Wonder Bookstore opened as usual.

Ma Feifei sat on the cashier of the bookstore early in the morning, looking at the endless stream of customers who came in to read the book, with a heartfelt smile on his face.

"It's better to stay in the bookstore!" Ma Feifei sighed comfortably, and the whole person was lazy, lying directly on the table, taking out two spirit crystals and playing with them in his hand.

One spirit crystal was brought back from the Doushu Continent, and the other was a spirit crystal bred by the Canglong Continent.

After some comparison, Ma Feifei could be sure that the ability contained in the spirit crystals on the Doushu Continent was far higher than that of the spirit crystals on the Canglong Continent.

The ratio is about one to ten.

In other words, one spirit crystal on the Doushu Continent is worth ten spirit crystals on the Canglong Continent.

"In that case......" Ma Feifei suddenly remembered a question, if calculated in this way, in fact, the 10,000 pieces of medium-quality paper he sold were not only 15.6 billion spirit crystals, but 156 billion!

"Damn!