Harem Overlord

"What do you mean when Lilith died?" Kai asked as he narrowed his eyes. 

"I meant what I said Kai. After Lilith's death, many changes took place on the demon realm. I was one of such changes." She replied before looking towards the demon realm with a small smile.

"I am old Kai. As old as the one who everyone calls the first demon. Little do they know the truth about it." Her words made Kai even more confused.

He had known that Sahara was old but didn't know her exact age. But Sahara being as old as Lilith surprised him.

"Kai, take out Hellbringer." Sahara suddenly said as Kai shook his head.

"The royal family would become aware of it the moment I take it out. That's almost as worse as putting a sign in the air saying that 'I am here. Please take me captive.'

"Just do what I say." Sahara insisted which made Kai sigh. He then took out Hellbringer as the sword suddenly turned in Sahara direction.

The sin of pride closed her eyes as a small white ball of light came in front of them. But the ball of light suddenly turned black as Sahara opened her eyes.

And she now had demon eyes.

"Is that your…" Kai's voice suddenly trailed off as he realized what was floating in front of him.

"You are thinking correct. That's my soul." 

The black ball then traveled towards Hellbringer before it seeped inside the sword. The sword started glowing black in color.

"Now let's go. Catch me…" Sahara suddenly said as she fainted. Kai grabbed her body and looked at the sword warily.

'Did she force her consciousness to fade away with her soul. Sahara sometimes does so dangerous things.' Kai thought with a worried expression as the glow from the sword surrounded the two of them.

He sighed when he saw that he and Sahara had slowly started fading away. Whatever she had done with her soul, it was something unusual.

And just like that, the two of them vanished.

***

In the demon realm.

"Master, did you feel that?" A person asked as he rushed into a secluded cave.

"Yes, I felt that…" A man with a floor length white beard muttered as he stood up.

He looked extremely old for even the cultivation world. But he didn't seem to mind his old man looked. 

"Chen, that was the aura of the sword known as Hellbringer." The old man said as the man named Chen took a deep breath.

"You mean the same sword that vanished alongside your daughter master?" Chen asked as the old man had a far away look in his eyes.

It was as though he was thinking about something that happened long ago.

"Yes Chen, its the same sword. However, there was more than a single person at that time who could wield the sword."

"You mean someone other than your daughter could wield the sword?" Chen expression looked as though he had just found out about a universal truth.

"There was a person named Kai. He was a persons who had many enemies simply because who his lovers were and well, his infuriating personality. I almost ripped that man's head off when I first met him." The old man said with a chuckle.

"But he was always growing stronger. I remember that he was weaker than me the first time we met but after a few visits', he was as strong as me. After that, he soon outgrew my power. Even my daughter grew a lot quickly because of him. Well I am still salty about him taking her virginity without telling me. I would have made sure to make that news public so at least my daughter wouldn't get marriage proposals." 

"Master, you are moving away from the topic." As much as Chen wanted to hear every little detail, they didn't have the time to do that.

"Yeah, yeah. Anyways, the reason he came to meet me was because the sins had asked him to come here. Ay first I thought that he was lying but when he summoned Hellbringer out of thin air, I was shocked." 

"Wait, do you mean 'the sins', master?! Like the seven deadly sins?" Chen asked with a baffled look as his master nodded.

To him, the seven deadly sins were like gods who existed bat never showed themselves. But when he heard that someone met them, and not just one but all the sins, he was instantly jealous of that person.

Chen could somehow guess why the person had many enemies just after hearing the story told by his master.

"After that, he told me that the sins had sent him to the demon realm to take care of something that was about to happen soon. I later on learned that it was the awakening of the fallen angel Azazel." Chen said as he got the same look in his eyes again. "That event was a major change for the demon realm at that time."

"Was that fallen angel really this strong Master?"

"Just imagine how the power of a seraphim, the second strongest angels. Now add the powers of a red eyed demon to it. The powers would combine together and give rise to something else. That was how powerful Azazel is." 

"Is? I thought he died?" Chen aske with raised eyebrows since this was something new for him.

"Its because I had it written in history in that way. But Azazel was still alive, though he trapped in an supposedly unbreakable prison, he was still alive. Kai and my daughter, who had become the empress at that time since I had stepped down, had sent Azazel back to his prison. But he had already caused damage." The man sigehd as he remembered the destruction the demon realm had faced.

"But that's when Kai stepped up as the demon emperor, well for a short period of time I say. He and my daughter trained the demons, taught them many things and started a new era for the demon realm which lasts now." The man finished as Chen fell silent.

"Go make sure that the era lasts for a little longer my disciple. I would go meet my son-in-law in the meantime."

Chen bowed and went away as the old man looked up at the sky.

"I wonder what mischief are you currently causing Kai."