Rei was sat in a lotus position as he had been accepting the dark energy yet not letting it overcome him.
"It has been a few centuries and yet you still resist?" The demon king said as he looked at the person in front of him. While time was faster in purgatory, Rei hadn't changed a little except for the fact that his face became more masculine.
"No, resisting is futile, so I'm just going with the flow." Rei said shaking his head. In these centuries Rei had been using the demon king's dark energy to further improve his own demon assault mode. But it had a negative side effect of amplifying his darkest emotions. It had acted like a switch. Out of combat Rei would be friendly and caring, in combat he would be a literal demon.
"If you are going with the flow then why are you rejecting the position if demon king?" The demon king asked.
"Don't you understand me yet? Being tied down with looking after the demon race is not for me." Rei spoke out.
"In that case, would you participate in the next holy war as part of the demon race?" The demon king asked.
"We'll see, maybe I'll be on the human side, maybe the goddess clan, maybe the fairies or maybe even the giants." Rei said towards the demon king.
"Hmmm...you are too dangerous to let out of here." He said looking at Rei.
"Stop the generous act, you never intended for me to leave without becoming truly loyal to the demon clan." Rei said to which the demon king only smiled at being found out.
"Well would you like to entertain me for a while then?" The demon king asked as guarding the gate between purgatory can be boring.
"What do you suggest?" Rei asked slightly curious that the demon king wanted to be entertained.
"That cooking of yours. Through the pig, I can see a lot of people collapse at the food. As the demon king such foods must by tried." The demon king said as he smiled slightly.
"HAHAHAHAHA!!!! The demon king, one of the strongest in the realms, want to try my cooking?!" Rei laughed out as he didn't think that a divine level entity would want his cooking.
"Are you laughing at this king?!" The demon king said frowning.
"Don't get me wrong, I was amused that my cooking gained the attention of one of the strongest beings in this realm." Rei said.
"Hmph, just cook. I can kill you with a pinch if it wasn't for the fact that you had a good bloodline." The demon king said as he waved away the dark energy.
Rei stood up for the first time in centuries causing his bones to crack. Stretching his body Rei could feel that he had regained more of his lost glory.
'System show stats please, simplified.' Rei thought.
[Name : Rei
Age : Immortal
Bloodline : Origin demon --> Origin demon emperor, Alucard.
Combat Rank : Peak World.]
'Hou~ the bloodline increased.' Rei though in surprise.
[Host had been exposed to the magic of a demon king for centuries tempering your own and gaining the next level of emperor. With this increase, your strength have also increase to peak world rank.]
'So it seems...' Rei thought before turning to the demon king.
"Any requests?" Rei asked.
"None, just give me your best dish." The demon king said as he prepared to watch Rei cook.
"You got any ingredients then?" Rei asked again.
"Look around you'll find some." The demon king responded as he sat down on a make shift throne and supported his head with his arm watching Rei.
Rei only shrugged as he could take this chance to see how he fairs against the monsters in purgatory.
Rei didn't have to walk to far before he saw a huge black mammoth made from dark element.
"Let's try this assault mode..." Rei said as demonic markings appeared on his forehead and shoulders. The dark element then formed a long coat on Rei's body as his hair spiked up slightly.
"Hou~ Now this is interesting." The demon king said feeling the power of Rei's assault mode.
Rei flashed towards the Mammoth as he wanted to only use his assault mode to deal with it. Bringing back his fist, Rei crouched down as he lowered his centre of gravity. Twisting his body slightly, he increased the strength of his punch to the extreme through combining body movement and his own power.
*BAAANNNMMNNNGGGGGGG!!!!!
The mammoth was blasted away like an arrow in flight.
"So my strength increase is much bigger than the 4th gate. With the assault mode active, my body should be able to withstand using the true tremor fruit." Rei said as assault mode didn't take much mana as long as he controlled the expenditure.
The mammoth soon crawled out of the crater looking pissed as it swung his trunk towards Rei.
Using the dark element to form a shield, Rei tested the defensive capabilities.
*BOOM!
The trunk landed on the shield as a the result caused the ground Rei stood on to crack.
'So as long as the attack isn't doesn't surpass my current combat rank in one go it can block it as well as stay there provided that I keep a constant supply of mana.' Rei thought as he condensed a small ball of dark energy on his chest. The ball suddenly shot forwards spinning clockwise as it formed the shape of a drill.
"AAAARRRRRRRHHHHHHHH!!!!!" The mammoth cried out in pain as it's whole body was pierced though.
Rei deactivated the assault mode as he walked towards the mammoth corpse.
Dragging it towards a location closer to the demon king, Rei traced out a large cleaver as he prepared to cut the food up.
The demon king watched as Rei prepared the food with great interest.
It didn't take long for the food to finish. Presenting the huge portion of food, Rei sat down and watched the demon king eat the food.
"AARRRGGGG! YOU DARE FEED ME THIS TRASH!!!" The demon king shouted in absolute disgust.
"Fuck!!! TURN OFF YOUR ABILITY!! Why the fuck would you turn the best dish you eat into the worst food?!?!?" Rei said exasperated.
The demon king could only stay silent as he had always have had a habit of keeping his ability active. Turning off the almighty, the demon took another bite of the food before widening his eyes, he had to restrain himself as much as he could to stop himself from losing control and devouring the food.
"This is not bad indeed." The demon king commented as he took another bite.
"Hais, if it is not bad then this kind of mediocre food cannot be eating by someone of your status. I shall not cook ever again." Rei lamented while he was snickering inside.
'Demon king, you dare say my food is not bad?! The I'll say I won't cook anymore.'
The demon king paused as he didn't think that this is how Rei would react.
"No it's fine, there is no one else to cook here so you can keep going." The demon king called out.
"No no no, I have polluted you mouth with food that is 'not bad' only food that is amazing can be eaten by you." Rei said pushing the demon king into the corner since if he wanted to eat this he'll have to discard what little pride he had.
"So be it...." The demon king said as he was about to eat again. But suddenly, he saw Rei take the dish away.
"What are you doing?! How dare you take this kings meal!" He called out not wanting to lose his last chance to eat this kind of food.
"Since this food polluted your mouth, I cannot continue to let you eat now can I?" Rei said.
'come on you overgrown bitch, you know if you want this you'll have to discard your pride and you can't kill me either since there won't be another that can cook like me.' Rei schemed in his mind.
"Fine....." The demon king said whilst trying to clutch onto his remaining pride.
Everyday from then, Rei could make sure to cook flavour bombs each meal having the aroma fill the area, the demon king tried to resist by using the Almighty but only let to torturing himself more. And every time he turned off the Almighty, he would be lured by the smell that he almost wanted to pounce on the food. If was when he threw a perfectly good meal away acting like it was a failed dish. The demon king watched as the monster of purgatory ate the meal with delight that his will power started to crumble.
"FINE! THIS KING ADMITS THAT YOUR FOOD WAS THE BEST!!!!" The demon king shouted unable to hold it in anymore.
"There see, it wasn't so hard now was it." Rei said as he gave the demon king a grin.
Making the food, Rei had started he scheme that he prepared during this time. The demon king didn't suspect a single thing due to his eagerness and ate the food with vigour.
Rei suddenly smiled as he snapped his fingers causing a golden chain to explode out of the food and wrapped around the full body of the demon king who had no time to use his ability before he was bound.
"WHAT ARE YOU DOING!!" The demon king shouted out in rage.
"Leaving, these chains are called Enkidu, they do wonders in sealing god like entities. So enjoy trying to take it off. But don't worry, they'll disappear in time. Only when I leave that is." Rei said with a grin as he pull his middle finger out at the demon king. Rei could see the demon kings enraged face as he fell backwards into the gate of purgatory.
"ARRRRGGG BASTARD!!!" The demon king shouted seeing Rei escape.
As Rei escaped though the gate, he could feel that his mana reserves had almost completly emptied just by using Enkidu. He continued to fall when he saw a sudden burst of light causing him to shield his eyes.