Demon Lord's Reincarnation

After hearing Haruto's story Kretos tried paying for the drink, but Haruto said it was on the house. 

"Hey, if you hear about any more otherworlders, I hope you inform me about it." 

"Sure, and if you come across someone that knows of a guy name Kretos, come find me immediately. I'll be at a school called Rulwarry, Institute Of The Arcane."

"Alright then, it's a deal." Haruto extended his hand forward wanting to shake hands. Even though his previous handshake didn't go so well, Kretos wasn't bothered in the slightest. He grabbed hold of Haruto's hand and shook it. 

After talking for a bit more Kretos left the Lonely Cat, and headed back to the school. 

...

When Kretos returned to the school a lot of people greeted him. As everyone was gathered around him, Kretos was about to tell them to move aside, when one of the teachers approached.

"Student Kretos what happened to the Osted family, did they let you go?" 

"I've killed them all, none are left." 

"Don't worry... Wait what did you say?" The teacher and everyone in the surrounding area quieted down. They all thought they had heard wrong, so they waited for Kretos to clear the misunderstanding. 

Seeing that everyone was now quiet and looking at him, Kretos felt slightly uncomfortable. He looked around and shrugged his shoulders. 

"I said that I killed them all, I left none of them alive." Everyone's expressions paled as they heard his reply clearly this time. The teacher wanted to ask further questions but no sound would come out of his mouth. 

"If you have nothing else to say, then move aside." With those words, Kretos left the area. Once he was no longer in sight the area suddenly burst in noise. 

"Do you think he's telling the truth?"

"The Osted Family came here and teleported away with him. Now he comes back and no signs of a single member of the Osted family can be seen. What do you think, is he telling the truth?" 

"How is that possible, not only were there multiple high mages there, even Sir Walganus the one who fought the current Grand Mage for the title was there. His power could even make an earth dragon wary." 

"Just how strong is Kretos?"

...

The news of the Osted family's demise spread quickly overnight in the capital. The other influential families sent out their scouts to the place were the battle between the Osted family and Krtetos took place. What they saw was a sight they would never forget. 

Numerous holes made from massive spells were all over the ground. The land was scorched black, the smell of blood made the men want to puke. There were no piles of corpses but they knew that many have died on this land. 

The scouts continued to look around hoping to see even one survivor or even an intact body. But as they continued onward they only saw charred body parts, not even one of them were fully intact. It was then as they were about to leave, they heard the sound of some movement. They quickly moved and to the area were they heard the sound. 

They arrived in the area were the sound was made, but they couldn't see anything. The scouts then saw that dirt on the ground was moving, it looks like it was trembling. It wasn't an earthquake as only that portion of the land was shaking. 

The scouts found it weird so the leader of the scouts scanned the area and found that there was a subtle mana fluctuation of a person underground. The scouts then started using [control earth] to dig. 

After a few seconds of digging, they found a man most likely from the Osted family that was still alive. Well, if you call his current situation still living. He was barely breathing, his face was half burnt, he had lost his left hand, and his right eye that was burnt by flames had no light in it. 

It would seem that the only reason he was alive was because of some miracle. He had activated his mana shield and was quite a distance from where most of the destruction happened. 

"W..W...Wa-ter." The man spoke his voice barely audible. The scout leader took out his jug of water and helped the man to drink. As he was drinking the man almost chocked. The scout leader then proceeded to help him drink more slowly. Once he was done drinking the burnt man spoke again. 

"I will kill Kretos." After saying those words he fell unconscious. 

...

In a field behind a large gothic-style mansion, a lady wearing a white tunic was floating above while in the lotus position. She was a rather stunning lady, long purple hair waving in the wind and a slender body that looked too delicate to touch. As she was concentrating mana flowed in and out of her as if it part of her. 

Orbs of fire, lighting, and wind floated around her circling her. As she continued to be in this state a person approached. 

"My lady there's urgent news." 

The lady opened her eyes and looked at her servant. She slowly floated downwards and the orbs around her disappeared. 

"What news?"

"Lord Walganus has died." The lady's eyes widened for a moment, then a smile appeared on her beautiful face. 

"So the old man finally went to the other side. How did it happen, poisoned, assassinated, or did he actually die of old age?" 

"None of those my lady, h-he and all the members of the Osted family were annihilated." Hearing the unexpected answer the lady almost stumbled. 

"What did you say, annihilated? A force strong enough to annihilate the Osted family, which kingdom did it? Which old family came out and killed them, tell me?" The servant hesitated to answer as he saw the expression of his lady.

"Answer me." The tone of her voice lowered and the servant got even more spooked as he answered. 

"It was just a single student."