Latter

In a forest near Konoha, a handsome young man who looked about 15 years old was crouched inside a hole.

In the middle of that hole was Shusui.

The young man then picked up the Katana that was inside the hole.

This young man is obviously Kira.

"Well, I think I can finally defeat Shiro! He's lucky he's not here!" Kira smiled broadly.

Kira clearly knew that even with Shusui he still had no chance to beat Shiro, but he would still not admit it.

Kira trained his body, mind and his encing with Shiro for 5 years. In addition, Kira even trained more sword skills in his dreams.

"What the hell is that idiot doing now?" Kira murmured.

Shiro went back abroad 2 years ago, saying that there were family problems going on, and that he had to help sort it out.

Before leaving, Shiro had given Kira a small crystal. Shiro told Kira to break this crystal when he defeated the strongest person in Elemental Nations, or when his life was in danger.

After Shiro left, Kira continued to train her body and mind as he knew he could improve a lot more, and that he was far from being on top.

...

During those 7 years some important things happened.

As in the anime, the Uchiha Clan was exterminated by Uchiha Itachi, and Uchiha Sasuke was the only survivor.

Kira at first wanted to prevent the massacre from happening, but did not know how to do it. Besides, he did not want the plot to change, since that was one of Kira's only advantages over everyone.

...

As Kira trained with Shiro, he dropped out of training at the Hyuuga Clan. But even after stopping to visit the Hyuuga Clan, Hinata was still staring at him.

Even Kira knowing that Hinata was much weaker than him, he still found it scary to have someone always following him.

Then, one day when Hinata was following Kira, Kira suddenly disappeared from her sight.

When Hinata looked around, she noticed that Kira was behind her.

Hinata quickly turned and ran when she found Kira behind her, but she did not notice that he ran toward a construction site.

As she fled, she did not notice a brick that was falling on her head. The brick hit her head and Hinata became unconscious.

Kira quickly took her to the hospital.

The next day Kira discovered something shocking. Hinata had lost much of her memory, and her personality underwent a great change.

Hinata was no longer the timid and cowardly girl, it was as if she were totally different.

Some time later, Hinata became known as the Princess Prodigy of the Hyuuga Clan.

Kira really was shocked by that. Did he accidentally make a big change in the plot?

...

"Actually, that did not change much. After all, it's been 4 years and there have not been many changes in the plot." Kira thought to hisself as he headed for his home, which is where Shiro lived.

"Well, at least she stopped following me after that, so it was not so bad." Kira murmured.

...

After arriving at his house, Kira took a shower and headed for the Hokage's residence.

"What will this old man want this time? I hope it's not that again ..." Kira murmured as he moved quickly over the trees.

...

Kira quickly reached the Hokage residence.

After a few moments after Kira arrived, he was taken to the Hiruzen room.

As he entered the room, Kira saw Hiruzen smoking his old pipe.

"What happened this time?" Kira asked.

"Kira, it's been a long time, has not it?" Hiruzen said.

"No, I was here three days ago." Kira replied.

"That's not what I meant!" Hiruzen spoke.

"I know." Kira smiled.

"You! You cheeky brat!" Hiruzen spoke.

"Well, anyway, I have to talk to you about something." Hiruzen said.

"I refuse." Kira spoke without waiting for Hiruzen to finish.

"... I have not said anything yet." Hiruzen said.

"Yes, but it's probably you asking me to become an Academy Teacher or a Jounin." Kira spoke without emotion.

"No, I already gave up on this idea, because I've been asking for it for more than a year, but you refuse me every time." Hiruzen sighed.

"Hm? Is not that it? So what is it?" Kira asked.

"Well, it's actually a letter." Hiruzen sighed wistfully.

"A letter?" Kira asked curiously.

"Yes, a letter to you." Hiruzen said.

"For me? From whom?" Kira asked confused. Who would send him a letter?

"Mio." Hiruzen spoke a word, which left Kira extremely shocked.

"Mio gave me this letter in her last moments of life. She asked me to give her up when you were strong enough to defeat a Jounin." Hiruzen spoke with a sad expression.

"Honestly, I never thought you'd be strong enough to receive this letter, but you surprised me." Hiruzen spoke his real thoughts.

"Kira, you're one of the greatest geniuses I've ever seen. Even without a chackra you've outgrown many with your determination." Hiruzen spoke with a little admiration.

"You may not know that, but I have a lot of debt with Mio. That's why I adopted you as my grandson, but today, I know that was one of the things I'm most proud of." Hiruzen spoke with a smile.

"Kira, be strong." Hiruzen spoke and handed a letter to Kira.

As Hiruzen spoke, Kira just listened quietly. Kira's face showed no emotion, but his eyes showed deep sadness, but more than that they glowed with determination.

"Thank you, Old Man." Kira whispered before disappearing from Hiruzen's vision.

"Why do my grandchildren have to suffer so much?" Hiruzen asked himself sadly.

...

After receiving the letter, Kira returned to his house to read her. Kira could read in the Hokage's residence, but he did not want his emotions to show.

The letter was crumpled with blood, but it was preserved.

Kira entered his room and opened the letter. Kira leaned against the wall of his room and read the letter.

As Kira read the letter his expression changed constantly. Joy, sadness, regret, but at the end of the letter, his expression was angry.

"That will not remain like this!" Kira murmured.

"But I'm still weak. I need to get stronger, I need to be strong!" Kira murmured.

...