When Yun Fan's last stroke had just been completed, there was a scene that he didn't expect.

Even the old man Tsuna, who was watching from the sidelines, didn't expect such a scene to happen.

"Buzz ......"

A soft sound sounded, and the spirit cone in Yun Fan's hand trembled, and it unexpectedly erupted with a terrifying momentum, shaking Yun Fan to let go and take two steps back.

Then, at that moment, terrifying metallic spiritual power and golden light erupted from the spirit cone, illuminating the entire interior.

"Whew......"

An angry roar came out, and I saw that at that moment, a tall and mighty demon beast shadow miraculously appeared on the spirit cone, and its whole body was condensed by golden spiritual power.

But at this time, this demon beast seemed to want to escape, but the golden spiritual power on its body was like a sprinkling of fluorescent powder, and all of it was absorbed by the heavy sword under it, and the spirit patterns on it were even more dazzling.

"Master, what's going on?"

Yun Fan looked at the scene in front of him in shock, such a scene he had never heard of or seen.

"Little rabbit, I want to ask you what's going on! But it looks like a good thing! Your chance has come! This is a spirit! And it's a demon emperor-level spirit!"

Old Man Gang looked at the demon beast shadow in front of him without blinking.

"Demon Emperor-level spirit?" Yun Fan was shocked.

Originally, he thought that what was sealed in it was a metallic spiritual power, but he didn't expect it to be an incomparably precious spiritual power!

"Boy, your chance has come, have you broken through the Nine Stars in metal?" asked Old Man Gang hurriedly.

"You broke through last night, don't you want me to absorb this spirit?" Yun Fan was also excited in his heart, could it be that Old Man Gang wanted him to absorb this spirit? The first spirit is the Demon Emperor level, so he will ...... in the future

Thinking about Yun Fan's heart, he felt extremely excited.

"Nonsense! If you don't absorb this spirit, will you still absorb it? This is your chance!" said the old man angrily.

"Then I use my mental power to suppress it?

Yun Fan asked excitedly.

"If you want to die, try it......" said the old man.

At this moment, Yun Fan was stunned again, should he let him absorb it, or not let him absorb it? It made his mood rise and fall now.

I only heard the old man say:

"Wait! Although your spiritual power is strong, you can't suppress the demon emperor-level spirit in your heyday, and now your spirit weapon is absorbing this spirit spirit, and when it is almost absorbed, you can go on it again! In this way, it is equivalent to a contract between you and the spirit weapon, and the spirit weapon can also produce spirituality, and no one other than you can use it, this is called a spirit pattern contract. ”

"Oh...... It's an exclusive weapon, and the equipment is bound~"

Yun Fan said nonchalantly.

Although the old man didn't know what the equipment binding meant, he knew the meaning of the exclusive weapon, and hesitated a little and said:

"Exclusive weapon? Almost, that's what it means! You hurry up and recover your mental power now, I have a bottle of mental power recovery potion here, you take it first." Old Man Gang said and handed Yun Fan a bottle.

Yun Fan was also polite and took it directly, then closed his eyes and recuperated, quickly recovering the spiritual power consumed by the portrayal of the spirit pattern.

After a while, his spiritual power had already recovered as before, making Yun Fan couldn't help but marvel at the magic of the potion.

"Master, what kind of demon beast's spirit is this, it looks like a tiger?" Yun Fan asked.

"This is the Sabertooth Tiger Emperor! Demon Emperor-level demon beast. Old Man Gang stared at the spirit in mid-air for a moment.

"Whew......"

At this time, I saw that the spirit kept roaring, wanting to escape, but it seemed that the spirit cone had some kind of suction at that moment, and it was tightly sucked in, and the spirit weapon heavy sword was quickly absorbing the power of the spirit.

At this time, the spirit is already a circle smaller than before, and it is already equivalent to the spirit of the demon general.

"Almost!

Old Man Tsunade suddenly burst into applause.

Yun Fan had been preparing for a long time, and when he heard the shouting of the old man, he did not hesitate to sacrifice all his spiritual power and walked towards the spiritual shroud.

When Yun Fan's spiritual power enveloped him, the spirit weapon heavy sword no longer absorbed the power of the spirit.

Nearly half of the spirit spirit was absorbed by the spirit weapon heavy sword, and Yun Fan was also a little difficult to suppress at this time, how to say that it was also a demon emperor-level spirit spirit.

"Compress the spiritual power little by little, so that the spiritual spirit will be assimilated with your spiritual power!"

Old Man Gang's voice sounded in Yun Fan's ears.

Yun Fan compressed his spiritual power little by little, penetrated into the spiritual spirit, and assimilated it little by little.

"Do a good job, pull the spiritual power and spiritual spirit to your body, wrap yourself and the spiritual core. Old Man Gang's voice sounded again.

Come on, my first spirit, be a part of me, make me stronger!

The next moment, the metallic spirit core in front of Yun Fan's body condensed out.

Under Yun Fan's control, the spirit was wrapped in spiritual power and slowly flew towards Yun Fan, wrapping him and the metallic spirit core in the spiritual power, exuding a brilliant golden light.

The real refining has just begun.

At this moment, Yun Fan's face was sweating like rain, and his face was also a little pale, although he used a potion to restore his spiritual power, his spiritual power was still a little unsupportable.

And the metallic energy emitted by that spirit poured into his body crazily, as if there were thousands of knives cutting his flesh, it was an unbearable pain, making his body tremble violently, and his face turned pale.

"Hold on!"

Old Man Gang stared at Yun Fan tightly, for fear that something would happen to him.

Yun Fan closed his eyes tightly, clenched his teeth tightly, and his face was a little hideous.

The power of the spirit is very terrifying, although it is not an entity, but the mental damage is also extremely serious.

Although Yun Fan was assimilating it, it was also destroying his spiritual power, trying to escape.

"Whew......"

The spirit roared, constantly waving his claws, and even opened his mouth to devour Yun Fan's spiritual power.

[Spirit Refining Process: 13%...... 15%...... 17%......]

"I, Nima, why is it refining so slowly, I can't support it if I go on like this!"

Yun Fan scolded angrily in his heart, gritting his teeth and urging his spiritual power with all his might.

"Silly boy! It beats you and bites you, and you won't fight back? Use your mental power to condense a weapon to attack it! Are you a pig? Can't use your brain?"

Old Man Gang was almost mad when he saw Yun Fan's appearance, and he had already forgotten that this was the first time Yun Fan had absorbed spiritual spirit.

Yun Fan was stunned, and listened to the words of the old man, which made his heart suddenly brighten.

Yun Fan suddenly opened his eyes and shouted.

Part of the spiritual power condensed into a big sword, and slashed towards the head of the spirit.

"Slash!"