"kill." said a voice in the back of Naruto's mind while time seemed too slow. "If you wish to survive you must kill them."
"Who are you?" Naruto asked suddenly finding himself in front of a massive gate in a sewer.
"If you wish to survive then do as I tell you."
"You still haven't answered my question! Said Naruto getting somewhat annoyed.
"If you must call me something, then call me your better instincts. Now, you must fight!"
Naruto returned to the real world just in time to see a kunai knife trying to stab him in his chest. Reacting on pure instinct, he grabbed the kunai by the blade. Ching was so surprised that he loosened his grip on the kunai. That was all Naruto needed.
Naruto reached the kunai out of his hand, then stabbed Chang in the stomach making him release him. He then then proceeded to throw the kunai at the short pudgy man's heart.
"CHONG!" Ching yelled when the knife hit home.
"Relax Ching we still have him outnumbered. He surprised us. Now just stay on guard for anything." said Chang while holding his bleeding stomach.
With that said they both tried to corner Naruto into the tree he was I front of. He surprised them once again by engaging chin in taijutsu. Except he wasn't using taijutsu, he was reacting on sheer instinct.
Eventually he was able to jump on Ching's back. Without knowing what he was doing, he dug his unsharpened five-year-old nails into the soft flesh that was his throat and violently ripped it out. Now, covered in blood and still holding Ching's throat, he turned to face Chang.
"Wh-what are you some kind of monster?"
"No." Naruto replied. "I'm just your death."
Then, faster then the eye could see, he raced to Chong and picked up the kunai buried in his heart. He then ran back to Chang just as fast, and started stabbing him with it. He just kept stabbing him. Sometimes he would jump to stab his chest. Other times he crouched to get at his legs or feet.
When Naruto felt he was dead (which was a good 236 stabs ago in actuality) he looked down at himself to see blood. Blood was everywhere. On his skin, on his clothes, on the ground, everywhere. Naruto just couldn't take it anymore. So he did what any five-year-old would do after killing three people. He sat down in a ball, shell-shocked.
"let me go you bastards!" Dog heard along with everyone else on the tracking team heard.
"Did you guys hear that?" Dog asked.
The response he got was a collective nodding of three heads.
With that being 'said' they all turned to go to the sound.
When the ANBU team arrived the sight they saw shocked them. There was the jinchuriki, in the middle of three bodies.
"You three, see if you an identify the bodies. I'll try to find out what happened from Naruto.
The three ANBU nodded and went to look at the bodies while Dog walked to Naruto and simply crouched and held out his his arms.
Naruto saw Dog hold out his arms, and since he was someone he recognized who helped him, he ran to him. He held Dog in a death grip, sobbing profusely.
Dog returned the embrace, just not as painfully hard. He held onto him until he cried himself to sleep.
"Dog, did you learn anything?" asked An ANBU in a wolf mask.
"No wolf," replied dog "but I think based on the reaction he gave it was him who killed them."
"Those were three B ranked missing nin! you realize that, right." said an ANBU in a cat mask. "I would have had trouble dealing with them!"
"We better tell the hokage." Dog replied while grimacing behind his mask.
"So let me see if I understand." replied an elderly man wearing white and red robes and a red hat with the symbol for fire on it. "You think Naruto ran away based on the tree house, then he was captured, and then he slaughtered them."
The four ANBU nodded their heads.
"I see, well, it lo-"
"Hokage, hokage!" yelled a blonde man holding Naruto while running into the office. "I did a mind sweep, and it turns out they're telling the truth!"
"I see," said the hokage "but what should we do with him?"
"I say we should put him ANBU. He already has killed people, and from the way he killed them, quite efficiently." said an elder.
"I second that opinion." said the female elder. "He should be placed in ANBU until death or until he is a liability to the team he is assigned."
"I disagree!" said Dog "I know what being an ANBU can do to your mind, we don't want him to burn out before his prime ninja years."
"I agree." said the hokage. "Therefore he will be placed in ANBU until he graduates the academy."
A third elder with a bandaged right eye and his arm in a sling said "Also, he will have one chance to pass. Otherwise he will be an ANBU for the rest of his life."
"Let it be so." said the the hokage with the three elders nodding behind him.
The four ANBU nodded their heads. Once Dog picked up Naruto from the blonde men they all left.