In the human body, there are five senses. These five senses are used in conjunction with one another to enable humans the ability to properly communicate with each another.

Sight…

Visual perception is the ability to interpret information from visible light reaching the eye. The resulting perception is also known as eyesight, sight or vision.

Smell…

Olfaction (also known as olfactics or smell) refers to the sense of smell. This sense is mediated by specialized sensory cells of the nasal cavity of vertebrates.

Hearing…

Audition is the ability to perceive sound by detecting vibrations via an organ such as the ear.

Taste…

Gustation is a form of direct chemoreception referring to the ability to detect the flavor of substances such as food and poisons.

Touch…

The somatosensory system is a diverse sensory system comprising the receptors and processing centers to produce the sensory modalities such as touch, temperature perception, proprioception (body position), and nociception(pain). The sensory receptors cover the skin and epithelia, skeletal muscles, bones and joints, internal organs, and the cardiovascular system. While touch is considered one of the five traditional senses, the impression of touch is formed from several modalities; in medicine, the colloquial term touch is usually replaced with somatic senses to better reflect the variety of mechanisms involved.

The system reacts to diverse stimuli using different receptors: thermo receptors, mechanoreceptors and chemo receptors. Transmission of information from the receptors passes via sensory nerves, along the spinal cord and into the brain. Processing primarily occurs in the primary somatosensory area in the parietal lobe of the cerebral cortex.

At its simplest, the system works when a sensory neuron is triggered by a specific stimulus such as heat; this neuron passes to an area in the brain uniquely attributed to that area on the body—this allows the processed stimulus to be felt at the correct location. The mapping of the body surfaces in the brain is called a homunculus and is essential in the creation of a body image.

These five senses are each necessary for proper life. However, there are indeed people who can live without them. Never once, however, has there been a case when somebody had to only use one of these senses as all the others were useless.

Never…

Until now…

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Uzumaki Naruto was happily five years of age. Admittedly, he was surprised his birthday went so well. He had gotten his own apartment, an allowance from Ojiji (Old Man), and he even found out about this great Ramen place called Ichiraku. What's more, he got a gift. A gift! A pair of goggles… they were weird looking, but they were adjustable. It looked like it could cover his nose, eyes, and ears.

When he asked Ojiji about it, he said it was for training advanced shinobi how to operate without the use of sight, hearing, and/or smell. Naruto didn't know that the Hokage omitted the fact that the technique hadn't been used in over a hundred years, but, he did tell Naruto he was holding an antique.
It was a fun day, and Naruto was just on his way home to his new apartment when something unexpected happened…

A man grabbed Naruto from behind and dragged him into an alley. Ok, for Naruto, it wasn't unexpected. Honestly, he was beaten every day and knew on his birthday, it would be the worst.

He went limp and made it more difficult for his attacker to move him around, it would also allow him to take in the physical beating more easily.

"Oi, Gaki (Brat)." said the attacker with a sick grin.

Naruto's eyes opened and drifted to the man. It was no ordinary man. It was an ANBU wearing a mask that looked like a crow. His gaze wandered to the ANBU's left hand, it was holding a vial with a sick, glowing green liquid. There was a black sticker on it, signifying ownership. Naruto could make out a white and red fan.

"You know who I am?" the ANBU didn't wait for a response, "What's the matter, Demon! Are you too stupid to recognize that I'm going to kill you?"

Naruto's eyes widened, before he could scream, the ANBU covered his mouth with his hand.

"Don't even bother. Those sentimental retards in ANBU can't hear you. Otherwise, I won't be able to avenge the deaths of so many clan members at your hands Kyuubi no Kitsune (Nine Tailed Fox)!" he growled out menacingly before letting out a cackle.

'This guy's off his rocker!' thought Naruto.

"See this vial?" asked the ANBU, showing Naruto the glass vial and sickening green liquid again, "It's a unique poison. A man by the name of Orochimaru originally used it for experiments. We were able to get a small sample because we were so generous in donating clan members to him. We don't know what it does, but, he said it was lethal. With this, I shall finish what the Yondaime (Fourth) started and bring fame to the Uchiha Clan!" he almost shouted before forcing the liquid down Naruto's throat.

Surprisingly, Naruto noted that he didn't taste anything. Then there was pain. It felt like somebody had set his organs on fire. It felt like they were tearing apart his body and ripping out his charred organs. Everything was becoming so hard to understand.

He couldn't even hear anything!

He couldn't see!

His throat hurt so much… and then everything stopped.

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Naruto woke up covered in something. It felt soft. He suddenly noticed something. Everything was so quiet. Nothing should be this quiet… or dark. He took a few sniffs.

He felt like he was in a hospital.

After all, every time he woke up from a really bad attack, he'd be taken to a hospital. But, he couldn't smell any of the medicine. He couldn't even taste the last thing he'd eaten.

It was really odd…

He suddenly felt something. It was like someone was tapping the side of his brain. Naruto turned his head in the direction of the tapping.

Naruto still couldn't see or hear. The tapping suddenly stopped and he felt a hand on his shoulder. He screamed before passing out

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Sarutobi Hiruzen was the Sandaime Hokage no Konohagakure no Sato (Third Fire Shadow of The Village Hidden in the Leaves) for a reason. During the Second Great Shinobi War, he earned the nickname of 'The Professor' after revealing his amazing mastery of jutsu (Technique) of every shape and size. He was terrifying. Furthermore, he was a phenomenal strategist with intelligence that rivaled the Nara family. He had several years of experience on the battle field and had honed his senses to such a point that he could never be surprised.

Except now as Naruto screamed like no tomorrow just after he touched him.

The Sandaime (Third) quickly removed his hand from Naruto's shoulder and looked at the boy.

He was confused. Naruto just looked confused from his standpoint.

Confused and panicked…

"Doctor!" called the Sandaime.

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Naruto's eyes opened and he looked around. He could see! He could hear! He… He was covered in water from the sewers he stood in.

Wait… Sewers? Why was he in the sewers?

Naruto took a few steps backwards before turning around and immediately running into something.

A bar?

Yeah… It was the bar to a big cage. Naruto took several steps back and looked at the massive cage in front of him before a pair of hating, red, slit eyes opened.

"Gaki… Come closer…" spoke a menacing voice.

Naruto foolishly obeyed and a pair of claws shot out from the bars, stopping an inch away from his face. Naruto fell back in shock.

"Kuso (Damn)… I was so close to killing you…" continued the voice before red chakra lit up the cage and revealed the biggest, sharpest set of teeth that Naruto had ever laid eyes on.

"What are you?" asked Naruto in something close to a whisper.

"I? …I am the almighty Kyuubi no Kitsune and you are my host!" shouted the fox demon.

Naruto's eyes widened before he collapsed on his backside.

"N-Nani (Wh-What)?!" he called out.

"I don't know how else to tell you, Gaki! You are my host! Your weak Hokage (Fire Shadow) failed to kill me so he sealed me into you!"

"Then… all those times I was attacked…"

"I can't say it's my fault that the villagers are ignorant of your fate. They wouldn't understand a Jinchuuriki (Power to the Human Sacrifice/Demon Container) unless they were Jinchuuriki themselves."

Naruto settled for a glare towards the towering beast, "So… what happened?" he asked.

"Well, you're now a deaf blind that can't smell or taste things." deadpanned the demon.

"Nani (What)?" spoke Naruto in a whisper.

The fox began to laugh at him before he stopped.

"Like I said, all your senses are gone except for your sense of touch. This place is your mind. It is here and only here that your other senses can be used. Now for the fun part… you don't know how to guide yourself with only a sense of touch. You can still talk, but, if I were you, I wouldn't talk as often… Wish I could tort- talk with you more, but, I'm afraid our time together has come to an end. I'll see you around…"

With that, the world was enveloped with darkness and Naruto awoke.

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"Sandaime-sama, with something like this, it's unlikely that Naruto will ever be a shinobi. He can't see. He can't hear. He can't even taste or smell things to check for poison!" said the doctor.

The Sandaime sat down and sighed.

Naruto… His surrogate grandson whom he cared deeply about would never be a ninja.

"Ojiji…" spoke Naruto's voice.

Sarutobi Hiruzen felt his eyes widen as he heard Naruto.

"I don't care what happens. I'll become a great ninja. I can't see. I can't hear. I can't smell or taste. I have an entire village that doesn't like me because of a certain fur ball. But, I couldn't care less. I have a few people who care about me. I can feel and touch. With what I now have, I will become a great ninja, I promise that… Dattebayo!" said Naruto with conviction in his voice.

Sarutobi could feel tears running down the wrinkles on his face. Even as the doctor protested, he knew it was useless.

…Naruto wouldn't hear him anyway.

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That's it for the prologue! I'll see you real soon…

Forever Signed in Blood,

Slayer End