It was simple really. The technique itself wasn’t riddled with flaws. However, it’s one flaw definitely showed when it’s user faced a wielder of the sharingan. While the technique’s goal was to capture the opponent, the user’s focus also required to keep the victim in sight at all times. All Kiro had to do was simply look down at Hashima to discretely lock eyes. A millisecond was all it took. When Kiro had jumped away from the strings and was mid-air for a few seconds, Hashima had to look up to see where he was in order to direct her strings. And that’s when he placed a simple genjutsu. It was nothing much really. Everything else kept its course until the point the strings latched onto Kiro.
For the genjutsu, there were two things that Kiro did. For Hashima, it looked as if Kiro didn’t get to complete his handsigns. In reality, he did. However, in order for the genjutsu too fully work, Kiro had to trick Hashima into believing she had captured him. The thing was, Hashima wasn’t fooled easily. Her senses seemed to be at a higher level than most others, but that’s also what Kiro planned to use. Unfortunately, this did require some sacrifice. Even though he successfully completed the handsigns for the substitution, the strings still managed to grab onto his arm and leg before he was actually substituted. However, the natural illusion of the substitution still stayed.
The thing was, Kiro knew Hashima would quickly realize that he had substituted due her own talented senses. That’s where Kiro enacted the second part of the genjutsu. Through the genjutsu, Kiro tricked Hashima’s senses into believing that his actual body was still there. The fact that she completely covered his entire body with the strings also helped. Even when she opened the strings, due the genjutsu, she would find Kiro’s supposed broken body instead of crushed wood.
Unfortunately, being substituted with a piece of burning wood did not help Kiro’s case as he nearly found himself being burnt by his own flames. While Hashima was focusing on covering his supposed body with strings, Kiro managed to make it out with minor burns. They stung but Kiro didn’t have time to worry about that now. Kiro looked forward to see that Hashima had nearly covered his entire body now, seemingly believing that she had him. No, it was the other way around.
The genjutsu plus the substitution did take a toll on Kiro’s chakra and he was now starting to run low. He had to end this now. Pouring chakra and providing a lightning nature transformation into the kunai in each of Kiro’s hands, he made his move.
In a swift movement, Kiro was right behind Hashima, with his lightning kunai to her neck, specifically her jugular. Kiro had the kunai dangerously close to her neck. So close that a simple movement would draw blood. Kiro did he best to prevent the electricity that was coating the kunai to strike her as he did not want to start the bloodbath just yet.
“So...” Kiro started to say. “You only have three choices and there’s only one where you come out alive.” Kiro said, going straight to the point. “I don’t want to kill you, but I will.” Kiro, still behind Hashima at this point, brought the second kunai up to the right side of her mid-area with his right hand. He placed the sharpest point of the kunai down, easily piercing through her clothes before the physical kunai even made contact. The piercing of lightning kunai was not something to be underestimated.
“So, your first choice is to forfeit right now.” Kiro told Hashima bluntly before he started to feel a familiar itch on his neck. “Your next choice is, to be honest, probably the second best option, especially if you like things fast. I can slit your throat right now and mercifully have your worthless life end in the next few seconds.” Kiro stated in a darker tone, a burning sensation growing from the area of his curse mark. “The third...” Kiro’s voice was deadly cold now as the curse mark started to spread through the left side of his body. “If you choose neither, I will slowly allow you to bleed out to death until you speak.” Kiro said before forcefully preparing to jam the kunai into Hashima’s right side.