Rebirth into the world of curses(JJK)

Yuta sat in the center of a spacious training hall, immersed in his thoughts and deep concentration. The polished wooden floors, worn smooth by countless training sessions, echoed softly with his muted steps. The walls, clad in warm wooden panels, were adorned with symbols of ancient martial arts schools, while along one side stood a row of training dummies. Hanging lamps from the ceiling cast a soft light, highlighting every detail of the hall. In the corner, a weapon rack held swords, spears, and training katanas. The hall, surrounded by a pine forest, was bathed in morning sunlight streaming through large windows.

Sweat dripped down Yuta's face, but he ignored the fatigue. He knew that to reach the level of a truly strong sorcerer, he had to work not only on his close combat skills but also on perfecting his techniques. After his training with Gojo, Yuta realized that he still had a lot to learn to be worthy of being called a strong sorcerer. There were techniques he hadn't mastered yet: Simple Domain, Curtain, and the pinnacle of sorcerer arts—Domain Expansion. However, he decided to focus first on improving his close combat skills and mastering the Reverse Cursed Technique at an advanced level. Yuta chose to gradually study its basic form—body healing. At the same time, he intended to immediately begin enhancing his techniques using the Reverse Cursed Technique.

Yuta began with the fundamentals. He focused on his body's movement: jumps, strikes, and pushes. He tried to understand how kinetic energy traveled through his limbs, like invisible waves. Imagining that these waves could be captured, retained, and directed, he started experimenting with using the Reverse Cursed Technique to "absorb" this energy like a vortex.

Yuta started with simple exercises, attempting to "store" part of the energy generated by his movements within his body. However, his attempts were in vain. The kinetic energy produced by his movements could not be absorbed or stored. He realized he was missing something important and decided to analyze the nature of his technique more deeply.

The essence of the technique lay in absorbing the kinetic energy of an opponent's attacks, storing it, and then using it later. However, Yuta pondered: how does the technique absorb kinetic energy if the attacks still hurt him? To test this, he approached a training dummy and delivered a light strike. Then he repeated the strike using the "Damage Accumulation" technique. The result was identical.

Yuta hypothesized that the technique does not absorb damage but rather copies the kinetic energy of attacks or creates virtual energy based on counteracting force. He decided to attempt using the technique continuously, generating this virtual kinetic energy through his movements.

As he moved around the hall, he imagined himself as a catalyst for energy creation. His own kinetic force was measured at 6.572 megajoules. Yuta began generating identical virtual energy and amplifying himself. His strength and speed doubled, but the technique required immense concentration and drained him in mere seconds.

When Yuta's speed increased, he almost destroyed the dummies and accidentally struck one of the hall's pillars, leaving a deep dent. He realized that in addition to mastering the technique, he needed to adapt to the sudden increase in speed and strength. This technique could become a powerful tool but required refinement.

Yuta also attempted to enhance his other techniques, such as Acid and Evil Eye. However, as Gojo had warned, most techniques could not be improved using the Reverse Cursed Technique. Frustration clashed with his desire to become stronger, but Yuta was determined to continue training.

After finishing his training, Yuta sat down on the floor, leaning against one of the pillars. A sense of unease began to stir within him. He recalled the moment he first used the Reverse Cursed Technique. The feeling had been strange, as if he had gained foreign, unfamiliar knowledge. The thought lingered in his mind: could this really just be his talent? Yuta decided to leave this question for later since he had no theor

ies, let alone clues.