In the market Kaynard and Yona started to shop for ingredients for dinner, but Kaynard removed his sword from it's scarbard and a few moments later demons started to storm the city.

Did something happen? This presense, demons!?! why are they attacking this city?

Even though Yona can't see the demons, she can still feel their presense, Yona quickly took a knife from her pocket and she grabbed Kaynard's hand. Kaynard on the other hand removed the sword from it's scabbard and he told her.

"You can sense their movements that's to your mastery of wind magic, but I can't let you die here Yona-chan, please run away."

All the villagers who saw the demons quickly scattered while trying to avoid the demons, Kaynard quickly realized that the demons are after the girl who possess the power that's on par with dragons themselves. Yona revealed a smile on her face and she said.

"If we don't do something, this city will be destroyed, let's help the city guard on defending the city."(Yona)

Kaynard scratched his head, he then let's out a sigh and he said.

"Fine, but if things became dangerous you must leave the town, get ready Yona-chan!"(Kaynard)

The demons quickly noticed the Kaynard and Yona, after sensing the magical energy of the two, the commander of the demons ordered the demons to attack the two. A few moments later a group of soldiers quickly arrived at the marketplace. One of the soldiers said.

"Why are there so many demons"(Soldier)

The city guard arrived to stall the demons long enough until the town is evacuated. But many of the soldiers fled from the town after seeing the number of demons on the market. Those who remained focused on evacuating the citizens from the town.

Clang!... Clang!... Clang!... Clang!...

Kaynard clashed swords with the twelve demons all at once, but most of the demons focused their attention towards Yona. kaynard used magic to enhance his sword with magical energy and swings it towards the demons.

Boom!

In an instant the demons that surrounded him within ten meters have all instantly died! The demons were shocked after seing Kaynard's technique and the started to be on guard for kaynard's movements.

Meanwhile Yona was fighting the demons, but the demons were too many and she can't even gather energy because because the demons kept attacking her everytime she tries to gather energy.

"Can you please help me Kaynard-sensei? Please buy me a little time to gather my powers"(Yona)

Kaynard quickly leaped in-front of Yona and he said with a smile on his face.

"Got it, just focus on gathering energy, you don't have to worry about our enemies, I swear that I'll protect you."(Kaynard)

Yona started to gather her magical energy, her powers quickly begun to increase at a level that a human can't possible attain. The demons felt her aura and  they quickly realized that she's their target. And thus all the demons quickly attack Yona, the commander of the demons quickly order his men..

"It's her, she is the one we were sent to kill everyone kill that child!"(Demon Commander)

The demons surrounded Yona, but Kaynard intercepted them by casting a spell called Sacred Light. Sacred Light is a magic that prevents anything that possessed demonic energy that only demons possessed. The demons tried to break  the barrier, but no matter what they do the barrier didn't even took damage.

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"What's with this magic? why can't we break through it's defense?"(Demon Commander)

Even though they've heard of the spell called Sacred Light, some demons still attempted on entering the barrier, but they quickly died in an instead upon touching the light. Kaynard took a deep breath and he told Yona with a confident look on his face.

"This barrier wont last much long, Do you still remember the strongest technique of the dragon's soul? Use it here to defeat the demon army."(Kaynard)

"G-got it, I'll try using it Kaynard-sensei."(Yona)

She touched Kaynard's chest with her right hand and then she begun chanting.

"Light of the chosen few please grant me the power to protect. The power to vanquish evil from this world. And to maintain order within the world. Come fourth Holy Sanctuary!"(Yona)

The bodies of the two was quickly surrounded by small particles of blue light, Yona felt like her body was slowly vanishing into thin air, at the same time she can feel that her powers are rising. Upon opening her eyes, Yona was surprised to know that she's obtained the ability to see, but when she looked at her body she quickly realized that she's now within the body of Kaynard. Then she heard Kaynard's voice inside her head and he said.

"Listen to me carefully Yona-chan, right now you're inside my body and you have temporarily gained control over my body, but the effect only last for three hours. But your physical abilities are greatly increased by the same level as the one that you originally possess."

Kaynard was talking to Yona through telepathy, so the demons can't hear what he's told Yona.

The demons started to surround Yona, but when Yona cleave the demons with the sword that she gave Kaynard as a present for his birthday.

Boom!....

Her strike was so powerful that demons were all sent flying and their bodies were all cut in half thanks to the power of her attack.

"What's going on? How can a human be this strong? So this is the reason why this girl should be killed, if she continues to live then she'll become a great threat against the mightly demon army."(Demon Commander)

The demons continued their attack against Yona, but it was all in vain, the demons we're all very strong, in fact, they're best amongst the soldiers of the demon king, but Yona's power was on another level that the demon soldiers can't achieve with just training alone.

Amongst all the demons in the world, there exist an elite group of demons called nobles, and amongst those nobles there exist a greater existence known as the demon king. but these demons didn't came from the noble households, they might be strong, but their strength is only superior against the ordinary demon soldiers.

Clang!.... Clang!.... Clang!.... Clang!.....

The sound of their swords clashing against each other was heard throughout the city, with every strike more and more demons fell victim to power of Yona's blade, as time passed more and more demons continued to die by Yona's hands.

Her sword that was her present for Kaynard as a sign of appreciation for all the times that they spent together was now stained with the blood of the demons.

Yona continues to kill all the demons which approached her range, the commander of the demons bit his lip and he shouted.

"All troops retreat, return back to camp. This battle can't be won,  it's best if we keep our casualties to a minimum."(Demon Commander)

The demons slowly disengaged Yona, A few moments later kaynard's body is surrounded by blue light and Yona's spirit is returned to her body. Kaynard let's out a sigh and he told Yona while having a tense look on his face.

"It's a good thing that the demons retreated, if the battle we continued fighting then the two of us might have gotten killed."(Kaynard)

"So it's effects only last for three hours?"(Yona)

"Let's go back to home for now so that we can finally rest after the fight against the demons"(Kaynard)

After helping with treating the injured Kaynard and Yona went to outshirts of the town, where their home is located.