I Can Upgrade My Talent In Everything

-Gregory's POV-

I avoid his attack by pivoting my right foot; the attack would have hit me if I hadn't been so quick. I reposition myself while also gathering my entire weight in my left arm in preparation for my next attack. I slashed the shadow in my peripheral vision with all the force I could muster in my arm. As I slashed through it...

*SHHHHH* The air produced a creaking sound.

Fain was standing behind me... He had a wide smile on his face and his eyes were scanning my face and body as if calculating something. I stomped my right foot on the ground to increase the speed and power of my attack. Without Degu, this is my current strongest blow. The arm he was using moved a few centimeters as my attack was about to hit it, and my attack just grazed it, producing a flickering sound. My attack landed on the ground... It makes a wheezing sound, and a crack appears, spreading at least three meters around from my attack.

When I looked at him, his face had turned cold and calculating, and he had a victory smile on his face. as he accelerates on me as if gravity and friction didn't exist... It was an odd, unfamiliar movement... His body had the appearance of a phantom... He was walking towards me, his movements fluid. I decided to punch him with the other arm I had available. He continued after seeing my move and became even faster than before, charging in a straight line towards my fist.

"Are you insane? You'll die if my attack hits you," I exclaimed in a panic.

I was attempting to retract my fist, which was only one meter from his face, but due to excessive force, it proved difficult, when suddenly... Fain's body came to a halt instantly, my attack only a few centimeters from his cheeks, and this was not the end, as his body stopped abruptly instantly and accelerated at a faster rate than before. The terrifying thing is that, despite the speed, there was no sound to be heard... It was deafeningly quiet, as if he didn't exist at all. I only realized he was on my back when I felt the sensation of a cold, sharp metallic object in my neck.

I turned around and stared at him blankly; he had his usual smile on his face, as if he had just done something insignificant...

"How did you do that?" I asked while trying to calm myself.

He gave me a serious look. "It was a family technique passed down by my predecessors called "Flashing Dash." the ability to essentially "teleport," or move so quickly that one loses sight of the user in an instant. In the past, I couldn't use it because without a tough body, you will be severely injured when using it. because the principle of this technique is to let the body reduce its resistance to friction at the lowest possible point.

I looked at him in horror, realizing that if that was true, he had the potential to become the most powerful assassin... Consider someone who can accelerate whenever he wants without making a single sound. He can literally kill anyone silently if you prepare and condition him properly.

"If that's the case... if you don't die young, your future is limitless," I exclaimed excitedly.

I was happy and proud that two of my students are talented; technically, I am considered his half-teacher because I taught him everything I knew.

"I will request a special dagger for you at Headquarters... Having a future powerhouse like you is beneficial to our organization," I stated confidently.

He came to a standstill for a brief moment, as if pondering something. "You're the best Captain... I will not let you down." He looked at me and saluted with his hand on his chest, his face solemn...

"Forget it! There was no need for such a thing, after all, we are all comrades-in-arms... I am confident that someone trustworthy like you will be watching my back in the life-or-death situations that will arise in the future," I said with a smile.

...

-Fain's POV-

I was finally home, and we sparred with various weapons to see if my talent worked on all of the cold weapons, and it did. I chose not to reveal my trump card, "Flashing Scabbard." I intend to use it only as a last resort. This technique enables me to attack extremely quickly with sharp small weapons such as daggers and knives. I actually tried a thousand times to imitate the techniques in anime by deducing the principles and perfectly replicating the motions using my LVL 5 memory and martial arts talent.

As you can see, I succeeded in replicating the Nanaya family's arts. I actually started working on it a year ago with no success. I finally met the conditions to do it only recently, thanks to my talent reaching LVL 5 and my body becoming stronger. Even if I decide to teach it to someone in the future, he must be as talented in martial arts as I am. Otherwise, it will be pointless. My ability to improve my skills in all areas was extremely valuable. You must understand that even the most brilliant or multi-talented person in the world will have weaknesses in some areas. That, however, only applies to them, not to me. In a previous life, there was a proverb that said, "A jack of all trades is a master of none, but oftentimes better than a master of one." In that case, I will simply be the master of all.

With my discovery, it appears that my "PLAN H" to become stronger requires some additional polishing... Following that, I intended to replicate the Zoldyck Family's assassination techniques and training regimen. However, I had to exercise caution when electrocuting and poisoning myself. It will be a very painful process just to increase my resistance to electricity and poison to an extremely high level. But I will do it in order to grow stronger. "NO PAIN, NO GAIN" is an old adage, but it's also very true. If I want to be among the best, I need to become more determined than even Eren Yeager. because logically speaking, the only way to achieve your dreams is to step upon the dreams of others.