As Sato DxD had made up his mind to grow stronger instead of taking the easy way out, as he changed his previous decision to leave everything to Issei, the protagonist, he thought of discussing this problem with Sato Fairy Tail.
"It's strange that you want to grow stronger."
Being average was something that the two were used to, and they also never thought of themselves as growing to become the strongest.
Being among the strongest, even if they didn't become the number one, was fine.
Be the only one instead of the first one.
This was their motto, but it wouldn't work in their worlds since if they wanted to live and protect their dignity, and those they cared about, whether they wanted to or not, they had to grow stronger.
"Well..."
Sato DxD thought for a moment and said, "I am not that ambitious, but I want to get stronger in a way, so that all the creatures won't provoke me."
"Hmm... is it like how people dress up, so they can appear strong, or so they won't be looked down upon?"
"That's right!"
Whether one wished to or not, people judged others by appearance.
If one's appearance was shit, then the people around would look down on them, and that was also the reason why branded, luxurious items had always been sought after.
Some people might say that those items were useless, but Sato felt differently, as they worked like armor in the past.
In the past, armor was an expensive item, but even so, no one could deny its necessity since, without it, one could die on the battlefield.
At this moment, while there was hardly any battlefield where people fought each other till death, there was still a battle among people, but the shape had changed, as it had become the battle of the mind.
When people dress better, others will think that they should be respectful and shouldn't provoke them. Even worse, some people would even lower their heads, begging, acting like the most servile servant, so those who dressed better could give them a donation.
Regardless, in the past, if one wanted to live a better life, they would train in martial arts, the arts of weapons, and own powerful weapons, armor, and even the best horse.
On the other hand, in the current era, if one wanted to live better, they had to study hard, enrich their knowledge, and then acquire many things that would not be looked down upon, such as expensive clothes and cars.
When one compares the two, they aren't much different, right?
Still, in Sato's world, what was needed wasn't to dress better; what he needed was a power that made people not dare to provoke him, as the price was too much.
As he had been targeted by many, he couldn't be as lazy as before, thinking to grow step by step, but he should have a little awareness that his life wouldn't be as peaceful as others.
Yes, he had potential, but everything was just potential if he couldn't unleash it.
"Well, it's good that you have that ambition." Sato Fairy Tail nodded, but unlike Sato DxD, he still had some spare time.
'Or, not...?'
Regardless—
"Have you made your plan?"
"What else is there to do if it isn't to call the third and the fourth?"
"Well, that's true."
Sato's mutated Twice Critical was able to call Sato from Fairy Tail.
Still, was it the limit?
Naturally, no, as the two could tell that they could also use the "Twice Critical" again to double themselves, turning the two into four.
"What about the energy problem?"
"Let's just use the promotion to the Bishop Piece, or the Queen Piece."
The Knight Piece increased the speed, the Rook Piece increased the physical ability, but the Bishop Piece would increase the magic power, and the Queen Piece would increase everything.
To call the third and the fourth, they needed an incredible amount of energy, like how he used the energy from the eight Pawn pieces of Sona's Evil Pieces to evolve his Sacred Gear and call Sato Fairy Tail.
"...it isn't enough, right?"
"Then, use the Twice Critical, too. The Balance Breaker state!"
"Are you sure?" Sato Fairy Tail frowned.
Yes, it was possible for Sato DxD to use the Balance Breaker, the strongest state of the Sacred Gear, the forbidden power that shouldn't be used, as it would break his body apart.
While he could use it, he only used it once in the past, as it was just too dangerous.
"I am different from before. I am not just a human."
"That's true."
If it were before, Sato DxD would hesitate to use his Balance Breaker as he was just a human with a limited ability, but now, he is a devil. His life had been extended to almost immortality, and he was brimming with life energy. The influence of the Sato Fairy Tail also increased his magic power further.
After all, unlike the world of DxD, where the magic power for everyone was set up from birth, the magic power of the Fairy Tail could be developed, but—
"It takes too much time."
"It would be great if you could get the King Piece, though."
The King Piece.
This was the Evil Piece that was created by Ajuka Beelzebub, but unlike the others, he hid its existence as it was too dangerous.
As for why it happened, it was because its effect was capable of increasing the magic power of the user of the King Piece by ten or even a hundred times, making the ordinary extraordinary!
Moreover, it was safe, which was attractive to the two.
Naturally, they knew that there was another method to increase their magic power, but it was too dangerous. If they casually entered that forbidden area, they knew that they couldn't leave. It would be fine if they were alone, but Sato DxD had been tied to Sona, so of course, he didn't want her to be affected by him.
"Well, if something happens, you can just say that you are a spy, right?"
"Well, that's fair."
Anyway, what was important in this world was power.
Even Satan, who was so shitty, could have all the devils to follow him, waging the war against heaven, so he could dominate the world due to his incredible power, or even Issei, who was such a pervert, was even sought after, even if he sucked the nipples of others to grow stronger.
In other words, as long as one had power, everything would be okay.
"What about your world?" Sato DxD looked at Sato Fairy Tail.
"Hmm..."
Sato Fairy Tail shook his head and said, "As I can increase my magic power, I don't think that I should be greedy."
"Well, that's true."
The two of them knew that there was another way for Sato Fairy Tail to grow stronger, but naturally, if he dared to touch that, he would lose everything, as it was forbidden.
"Nothing ventured, nothing gained."
"Yup."
If they wanted to get something, they had to pay for it, like how Sato DxD became a reincarnated devil.
Anyway, the price for this problem was just a little pain.
"...by the way, if you can use this power, why don't you use it?" Sato Fairy Tail asked.
"Because I don't know."
"....."
How could he know that his Twice Critical could even evolve?
"That's fair enough."
"I wonder where the third and the fourth Sato come from."
"Isn't it better to just call the third? In terms of energy, it's cheaper."
"Let's just go all out, okay?"
"...okay, then."
As the two made up their minds, Sato Fairy Tail knew that he had to settle everything first, or else, he would be dead.