Thinking about her recent improvement, Koneko let out a smile.
Because of her past experiences, Koneko didn't want to feel weak again, but her improvement in recent years has made her feel depressed.
But now that he has started training with Kozue, his strength has improved considerably.
Watching from the side, Rias looked on with a big smile at Koneko's improvement.
Kozue helped her gain better control over her Touki and taught her how to efficiently strengthen her body to multiply her strength several times.
A serious blow from Koneko could now easily kill a high-class being, so Rias and her peerage did not dare to receive her blows head-on.
In summary, Koneko's strength had increased several times since she started training with Kozue.
And not only her.
Akeno, Kiba, and Rias have improved considerably by training against Kozue.
And not only did he help each of them increase their demonic energy after many battles, but he also gave them very good advice on how to improve their battle skills.
Akeno was helped to study physics and how lightning works, so now her lightning abilities were more dangerous.
And not only that, Akeno was also working on a skill that used her body's internal bioelectricity to enhance her reflexes and speed of thought.
All this under the guidance of Kozue, who surprised everyone by moving so fast around them that it seemed as if she were teleporting.
He helped Kiba improve his sword skills and gave him advice on what kind of swords to create for 1 VS 1 battles or against group battles.
And he gave Rias advice on how to use his power of destruction.
It was ironic that someone who didn't have the power of destruction could think of better ways to use it compared to her.
Seeing her rapid improvement and her nobility, Rias realized that she had been wasting a lot of time playing games when she should be making the most of her time.
Although her parents promised to postpone her wedding to Riser Phoenix until she finished her university studies in the human world, Rias should have trained alongside her peerage from the beginning and not waited until now for someone to appear and give her a wake-up call.
Kozue's words from a week ago were:
"Rías, according to you, the three factions are at peace for now after a great war in which many of their members died."
"Obviously, a great deal of hatred has formed between the three factions."
"And because angels, fallen angels, and demons live for a very long time, that hatred will still be there even after hundreds or thousands of years."
"I think one reason why another war hasn't broken out again is that the number of members in each faction is low."
"But what will happen when each faction regains its original numbers?"
"Especially demons who possess evil parts they can use to reincarnate other races into demons and increase their population."
"When the demon population increases, I'm sure many will emerge who think about starting a great war to demonstrate the superiority of the demonic race."
"It already happened once, when the demons had a civil war."
"One side wanted to fight against the other two factions, and the other side wanted to stop the war."
"Among those who wanted peace, many had seen the horrors of war and simply did not want it to continue."
"Others simply knew their numbers weren't enough for a prolonged war."
"Even more so when demons have a low birth rate"
"So it's certain that another civil war will happen again when the demons regain their numbers."
"If I, a human who just entered the supernatural world, saw it, I'm sure the other two factions saw it too."
"Do you think these two factions will allow the demons to recover faster than they can?"
Kozue's words were like a hammer blow to Rias's head, waking her from her past immaturity.
As the heir to the Gremory family and younger sister of the current Satan Lucifer, Rias never thought her life was in danger.
Her only difficulty so far has been her commitment to the Riser Phoenix, a commitment that Rias vowed to break in the future.
With a possible war on the horizon, a simple compromise wasn't so important.
Kozue's words made her understand that her life could change at any moment.
Any member of his family could die if a major factional war breaks out.
In Rias's mind, her nobility was also her family.
Seeing that Kozue and Koneko had finished training, Rias stepped forward to take her turn.
.
.
.
After fighting Rias and then Kiba, Kozue returned home.
Upon entering his house, no one greeted him because his parents were at work, so he went uninterrupted to his room.
She put her school things aside and changed her clothes.
And with a thought, he disappeared from his room, only to reappear in a gray room.
This gray room was located underground, dozens of meters below the shop he had previously bought in Robin's name, which allowed him to earn points every day.
This room was where he trained his skills and fought against Mikita and Robin.
Raising her hands, she showed some bracelets on Kozue's wrists, and with a thought they opened and fell to the ground.
BOOOOOOOOOOOM
A huge crash echoed throughout the room as Kozue sighed in relief at the weight being lifted from her hands.
Because she wanted to increase her strength, Kozue decided to carry various weights on her body to train her body at all times.
But the bracelets weren't the only heavy thing she was carrying.
Kneeling down and slightly lifting the hem of his trousers on his right leg, he took out an anklet and placed it on the ground.
He did the same with his left leg.
Had he not carefully placed the ankle guards and thrown them into the air, the ankle guards would have fallen to the ground and made a loud crash, just like his wristbands did.
If Rias and her peerage saw this, they would be surprised because Kozue was fighting against them while carrying all these weights on her.
Getting up, he called his dimensional store's status screen and bought a new set of weights.
He stored the old pesos in his warehouse and thought about lending them to Mikita or Robin.
After buying new weights, he put them on and started training.
As the minutes passed and his body warmed up, the gravity in the room gradually increased.
Gravity x2
Gravity x3
Gravity x4
. . .
Gravity x10
Along with the gravity pressing on his entire body, the weight in his wrist and ankle supports also increased, making it more difficult to move.
One by one, Kozue practiced the 6 marine styles under the intense gravity that pressed on her body.
While he was training, Robin and Mikita joined his training.
The arrival of Robin and Mikita alerted Kozue that they had just closed the shop, so it was 6 pm.
After training for another hour, Kozue stopped and gravity around her returned to normal.
Taking the weights to his storage, Kozue bought a dandelion and ate it immediately.
And almost instantly, all the negative effects of the training disappeared from his body.
Next, he bought two more dandelions and gave them to Robin and Mikita.
And just like Kozue, both women recovered after consuming the dandelions.
"Let's take a bath!" shouted Mikita as he grabbed the other two by the hands and dragged them towards more showers that were on the training field.
Mikita didn't have to use much force to drag them away since neither Robin nor Kozue put up much resistance.
After all, showering together after an intense workout had become a routine.
~Mmnn~
¡Plap!
¡Ohhh!
Soon, moans, thumps, and screams could be heard from inside the shower.
.
.
.
The wearer of the boosted Gear, although he didn't know it yet, regretted his actions when he felt pain in his stomach.
Seeing Kozue Ichihara in front of him, who was looking at him with indifferent eyes, Issei could swear that he saw intentions to kill him for a second.
The events that led to this situation began at the beginning of the year.
In the school cafeteria, Issei looked with intense jealousy at the young man who was eating amidst a group of beautiful young women.
"Damn, I'm jealous!"
"It's unfair that he's so popular just because he's handsome."
Issei didn't know why the girls followed him just because he was handsome and his friends thought the same as him.
If Issei had known that his subsequent actions would prevent his harem dream from even starting, he would have regretted it for the rest of his life.