<AQUA POV>
It has been a few days, and I noticed that Amy-nee is too busy for something. While I am busy with my sacred gear to learn everything, I have also learned an inherent trait of Galaxion called HIT, which makes sure that my attack will definitely hit the targeted person, but it has the disadvantage that it will only trigger when the opponent is weaker than twice my stats. I have already mastered the balance breaker and can maintain it easily.
I have not learned juggernaut drive because Amy-nee threatened Galaxion and me not to learn it until I master my ki and learn senjutsu. And since I am not a child, I can say that she knows that this move has some side effects that can be minimised by mastering senjutsu. I learned about senjutsu from Amy-nee when she learned the technique from Yasaka when we visited Kyoto again a year before. I noticed that senjutsu helps in controlling the flow of life, which shows that my previous speculations are correct.
And one more thing: I got space magic from Galaxion, through which I can manipulate space to a small degree. And I even got inspiration from the manga named Naruto, given by Ame-nee, to manipulate space to create a separate space to separate my real body from the dimension, and from the original technique of Obito called Kamui. And also to teleport oneself to another point with some mana signature like Yellow Flash. But Amy-nee taught me one more technique called infinity, which I cannot perform because of my limited mental capacity and lack of control. But I modified it enough to use space magic to use it as telekinesis.
Anyway, I can close up my weakness with my keen observational skill to detect weak points in any magic circle or other ability. Which helped me create my own magic spell, called interference, which helped me interfere with other magic circles and control them. Amy-nee praised me, saying that it is a nice spell but still a little weaker than the Kankara Formula of Ajuka Beelzebub.
"Aqua, I need your help."
"Speak of the devil."
"Did you say something?"
"Nothing; I was thinking about the Devil's Kankara formula."
'Well, I didn't lie in a sense. I hope it is enough to fool Amy-nee.'
"I seriously doubt that. Anyway, I need your help to test my new weapon."
"Fine, I also want to fight you."
Amy-nee put a hand on my shoulder and took both of us inside the shadow, or the personal world of Amy-nee, called the shadow world, where a highly developed island is present. Soon, we both came to an empty plain.
"Aqua, make sure you activate your Scale Mail."
"Balance breaker"
{Void Dragon: Balance Breaker}
I activated my armour, and blue and black armour covered me completely.
'Galaxion, let's beat my nee-san.'
{Yes, partner, this time we will show our might.}
Meanwhile, I notice Amy-nee sparked with lightning, and with that, a black and purple armour completely covered her.
"Aqua, this is my new invention, Pandora, a mech armour completely made from the scientific side."
"Rift..Rift..Rift..Rift..Rift..Rift..Rift..Rift..Rift..Rift.. Explosion."
I can feel an increase in my stats when using Rift on Nee-san. Rift increases my power by increasing the average stat difference between me and my opponents. That means if I have a stat of 1 and my opponent has 5 stats, I will gain (5-1)/2 stat points, a 2 point increase. But the stat gain will keep decreasing with how much time I use the Rift. And I can only power up until I am infinitely close to my opponent. And it will not work on an opponent weaker than me.
So, now I might be infinitely close to Amy-nee's stats, but we both have differences in experience and techniques.
Amy took out a katana and closed the distance between us to attack, while I concentrated mana on my two gauntlets to defend against it. The good thing is that my movements are not that restricted in Scale Mail mode. So, I can easily control my movements and attack. Amy is using this mecha for the first time, so she is making clumsy movements, but her controls keep improving with time. So, I have to make my moves faster.
I used teleportation and attacked the IS from behind, but some kind of energy shield blocked the attack. Suddenly, a cannon appeared on each shoulder and produced a strong shockwave to create distance between them. I summoned my wing and flew over the sky to attack from there. But I hadn't even thought that Amy-nee mecha could even take flight in the sky. And I can observe that its movement has become smoother in the sky. It seems she is adapting faster than I thought.
I spotted a core part in the mecha, which seems like an energy source. I moved forward and dodged Nee-san's attack by separating my real body into different dimensions. It stinks that I can do it for only 10 seconds before my magic power runs out. By passing through the mecha, I grabbed the energy core and ripped it out of the mecha.
"Aqua, good job, but you still fell for it."
As Nee-san spoke, I noticed the damaged part was automatically repaired, and a new energy source replaced the previous core. And a long barrel came out behind the mecha, aiming towards me, and it sparked with electricity.
No doubt, this is obviously too dangerous for me. Without any thought, I teleported from my position, and as the strong projectile passed through my previous position, a deep hole formed with smoke coming out of it. And the strong shockwave it produced was enough to blow me up if I was not in scale mail.
Soon, my Balance Breaker mode came to an end, as my magic power was completely exhausted.
{Partner, I will only say that even Tiamat is not as wild as your sister.}
'I guess.'
"Nee-San, that's enough; you won."
"Aqua, there are still 156 parts to be checked, of which 86 belong to auto repair, 11 to data analysis, 13 to energy consumption rate, 32 regarding attack systems, and ...."
"Wait, wait, that's enough. Can't you just use your clone to test your mecha?"
"Tee-hee, why didn't I think about that?"
"ಠ_ಠ"
"What with your expression?"
"That 'tee-hee', doesn't suit your personality."
"Oh, I thought I should try this once."
"Better not try that again.", 'Otherwise, many guys will risk their lives by proposing to you.'
__________________________________________________________
<UNKNOWN POV>
I am Ren Kusanagi; it has been 15 years since I reincarnated in this world. And you know what? This freaking world is DXD, where the plot only revolves around the boobs. And coincidentally, I am a resident of Kuoh Town. And I have my father, mother, and little sister as family. And I tried to persuade them many times to move out of Kuoh Town. But they misunderstood that I was being bullied in school.
Anyway, I was even shocked that this DXD world plot is a little different, like the modern world, modern technology, and even crossovers between different anime. Like Oshi No Ko, it's a pity that I was only 5 years old, or I might have tried to save her. But I was shocked that she was still alive after that, which means there are others who might have reincarnated.
However, it is a blessing that I got a sacred gear called the Annihilation Maker at the age of 5. The most bugged sacred gear in the DXD. Sorry, Leonardo, but in this world, the greater the power, the greater the freedom. It is easier to make a basic monster, but it needs more energy and focus to create a stronger monster with more function and flexibility in abilities.
I used Annihilation Maker in many ways, and I even took some ideas from other fanfics, like making a venom symbiote itself. Other than that, I made a radioactive spider, which will lend me spider abilities. As the sacred is explained as being able to create any imaginary monster, why not make a monster to be able to lend abilities?
But it was all in vain, because the more powerful and balance-breaking the monster, the more mana is required. It took me five years to create the perfect venom symbiote. It took another two years to create a radioactive spider. And after some thought, I made Galvanic Mechamorph, or Upgrade, from the Ben 10 series, which will help me develop on a more technological side. And because I had made venom symbiotes before, it was easier to create them, and later I mixed both venom and galvanic mechamorphs to create another species.
So, I gained the abilities of Spider-Man and the ability to transform machinery according to my needs, similar to Generator Rex, with the ability to produce bioelectricity, an ability of Galvanic Mechamorph. But I still have a weakness for flame and sound. Anyway, my only goal is to survive and protect my family. I hope I don't get found out by any devil or anything, or it will be game over.