I tried writing in a screenplay format, but it felt so unnatural; I'd better go back to the old way.
Sasuke: "..."
Naruto: "..."
Inside the noisy classroom, thanks to some nameless kind soul, Sasuke and Naruto had just exchanged their first kisses.
At this moment, Sasuke truly wanted to return to the future and give Orochimaru a piece of his mind. Why did he have to set the timeline to this exact moment? This sick sense of humor was truly nauseating.
But on second thought, this wasn't so bad... After all, after this day, Sasuke and Naruto would never be this close again.
The jealous girls forcibly pulled Naruto and Sasuke apart. Sasuke's Sharingan caught sight of Hinata, who was secretly peeking at Naruto from the side. Suddenly, a wave of anger surged within him.
It's all Hinata's fault! It's all Hinata's fault!
It was Hinata who stole Naruto away from me! If it weren't for Hinata...
The true purpose of his trip was to kill Hinata.
As long as Hinata is gone... Naruto will definitely fall in love with me...
Everything that followed happened exactly as it had before. The only difference was Sasuke's body. Sasuke could feel that although his body had shrunk, his power remained. His eyes were still the combination of the Sharingan and the Rinnegan. With this kind of power, killing Hinata would be far too easy.
(PS: There is a bug here, which is that Sasuke's Rinnegan seems impossible to deactivate. However, I really couldn't think of a way to make the current Sasuke look like he hadn't activated any ocular jutsu. So, I hope everyone will just turn a blind eye to it.)
Just like before, Kakashi was the last one to arrive at the classroom. After leading everyone out, Kakashi had them introduce themselves.
"My wish... is to kill a certain woman," Sasuke Uchiha introduced himself coolly.
Once the time scheduled for the following events had passed, Sasuke began his own operation.
Sasuke took one last lingering look at Naruto's departing back. Without a word, he headed straight for the Hyuga Clan Estate.
Sure enough, Hinata, who didn't have many friends, had returned home as soon as school ended. The corners of Sasuke's mouth curled up; this was the perfect time to strike.
However, it was absolutely out of the question for Sasuke to do something this dangerous while wearing his own face. So, Sasuke found a secluded spot and used the Transformation Technique to disguise himself as the guy who had set him up earlier—Orochimaru.
"Oh no! Orochimaru is here!"
Using their Byakugan, the guards of the Hyuga Clan spotted Orochimaru at the gates of the Hyuga Clan Estate from far away.
Sasuke kicked the gate open and glanced at the Hyuga Clan guards. These guards were quite capable compared to other ninjas of the same rank, but the moment they saw Orochimaru, they were so terrified they couldn't move a muscle.
"Sharingan!" Sasuke activated his Sharingan, using a genjutsu to knock the guards unconscious. Sasuke didn't want to harm them; after all, he only had one mission this time, and that was to kill Hinata.
Watching the guards fall one by one, Hyuga Hiashi stepped out. He was the head of the Hyuga Clan and Hinata's father.
"What do you want, Orochimaru!" Hyuga Hiashi demanded in a booming voice. He glanced at the fallen guards and muttered, "I see. So you have finally obtained the Sharingan you've always dreamed of."
"Move aside. I don't want to kill you," Sasuke said before stepping forward. At the very least, he hadn't intended to fight when he said those words.
Seeing that negotiations had failed, Hyuga Hiashi stepped forward to engage. Hyuga Hiashi was quite confident in his own strength.
"Zzzzzzt..."
Lightning flashed in Sasuke's hand, and with a Body Flicker Technique, he thrust his hand through Hyuga Hiashi's body: "Lightning Release: Chidori."
With the final protective barrier gone, Sasuke killed Hinata with ease. Having completed his mission, Sasuke returned to the future.