Outcast Dxd

The sun was setting and Isamu was at the house training . He had finished his foundations so know he had to move to the more excruciating Demonic god technique. 

This was a cultivation technique he honestly wished to have cultivated with sooner but despite acquiring it , he couldn't in his previous life because the requirements were pure bullshit. 

It could only be cultivated with a person who has killed at least 10 million people and all of whom must be cultivators . That was doable but what made it bullshit was that the maximum cultivation level of the said person had to be 5th Foundation stage. 

What kind of bullshit was that ? Killing 10 million cultivators while being only an ant in the behemoth of great venerables ?

The technique was simply the greatest treasure . It definitely was way greater than those so called immortal techniques.However Isamu at the time was cautious so he tried it on Su Yan , the wife to the Blossoms sect ancestor Chang Ming .

The result was catastrophic or rather beautiful depending on how twisted the person was . Su Yan ended up killing almost half of the city in a crazed state and Chang Ming had to put her down . She died in his arms .

' Chang Ming really was pissed to the point he successfully united all sects and continents just to kill me and they all died in the battlefield. ' Isamu thought in awe at this person . He hated the guts of this very being for personal reasons but he had to actually applaud his tenacity.

He sat in a lotus position as his breathing steadied and ki rushed into him. Space distorted around him and the temperature rose. He winced in pain but endured it as he started sweating . Not 3 minutes passed when he heard a bell making him frown.

He slowly opened his eyes revealing them to be as black akin to the abyss however they slowly reverted to their normal violet hue. 

As much as he hated his session being interrupted , he brought it upon himself when he didn't wait for his partner to arrive. He walked down to the ground floor and opened the door revealing Sona with her luggage.

No one else was with her which was weird. 

" Ah my dear , please come in " Isamu said as he offered to carry her luggage.

Sona bowed .

" I will be in your care " She said.

Isamu used this time to settle her in an unused room . There were 5 rooms in total and 3 of them were practically never used. 

Once Sona settled , Isamu turned out full demon mode. 

" Now that you're settled how about we go do some exercises my dear~ " His tone was quite charming and Sona found herself blushing . 

' Does he perhaps want to ravage me right now ' Sona didn't seem to reject that idea all together. 

She looked down , her confident self disappearing .

" O-okay " She said.

**** 1 hour later ****

Sona was panting . She felt that she could literally die of exhaustion . She was covered in sweat.

" Move faster damn it " The sweet voice of Isamu was now officially replaced with that of the most disturbing monster. 

Yes she was on the basement with some sort of talismans that seemed to distort the space here. It was now 300 metres in length and 150 metres in width. The height was an astounding 40 metres. 

She had been running for the past one hour with no rest and just when she is about to rest the monster known as Isamu approached her and hit her buttocks with a wooden stick prompting her to move faster. 

She wasn't particularly hurt with the stick but it was still painful. She furthermore couldn't hurt him . She had power yes enough to one shot him but she couldn't kill or hurt what she couldn't hit. Isamu was just damn fast. 

She ran 4 more laps before collapsing again. 

Isamu was busy meditating one one corner of the basement and when he sensed she was on the ground panting , he stopped his meditation and approached Sona. 

Sona saw the demon appear on her field of view . He held a sweet smile but she had learned not to trust that absurd smile.

" You did well dear " Isamu said .

Sona was shocked . First he tricks her then literally bullies her then he congratulates her ? But she had to admit it actually fell kind of nice that she was acknowledged.

" Now that warmup is over , we shall move on to the actual training . " 

Cold imaginary water was poured on the warm feeling Sona had. 

" You are a goddam monster " She said with pure rage.

Isamu laughed at this .

" Why thank you "

" That wasn't a compliment !! " 

The bell rang and Isamu let out a wide grin . He glanced at Sona .

" It seems we've got a new partner " He said as he walked up leaving Sona stupefied. 

' Did he just get another girl after I gave him the go ?' She thought. She rested for a bit before she walked up to see who it was.

Turned out it was her childhood best friend. Sona wanted at first to stop Rias from making the worst mistake in her life but then she thought if she had to suffer so did her friend. 

So she made the most convincing smile as she welcomed her friend.

" Wait you are not mad ? " Rias asked Sona .

" About what ?" Sona asked

" That I am disturbing your peace due to my selfish reasons ?" Rias seemed sat as she asked that. It seemed something had happened.

Sona looked at her friend wanting to try and comfort her but she thought otherwise. What she was to experience would make her feel better. 

" Not at all " Sona smiled at Rias . She then leaned in to whisper. 

" Isamu is a beast . He has drained me of every strength and now I finally get a sister to help me " Sona said. Her words were incredibly misleading but she did not care . 

Rias blushed heavily at that . To make matters worse Sona was covered in sweat suggesting something physical had happened.