Okay, so I went back to look at some reviews and found that as of recently a lot of people were getting disappointed with the story. Some of these were for very valid reasons, and I decided to revamp the story.

Now, I won't be changing everything. Severus is still going to get into Hufflepuff, Lily is still going to die(DEAL WITH IT!), and I will not be taking out the original characters.

However, I am going to change a few things. First off, Severus will accept his life as Itachi right from the start. This doesn't mean he's going to be an immediate powerhouse, he will still have to train up his body to use Itachi's power. Second, because of having Itachi's power, he is not going to put up with his parents forever this time. Third, I have decided that instead of writing about Severus's school years later- originally it was going to be Harry seeing it when he uses that one bowl thingy, which I cannot remember the name of for the life of me, to view Severus's memories- I will instead be writing everything in chronological order.

This does mean, that the action will be a little slow at first, other than a few times, at least until around year five. But don't worry, it will probably only be like a chapter or two per year, so that way we can get to the point that I stopped at on the previous one.

Now, enough with my rambling, here is the remake Of Potions and Sharingan!

Prologue:

Curiosity Revived the Cat(Or is that the Crow?)

Darkness enveloped him, surrounding him in a blanket of nothingness. He felt himself falling, but he had no idea for how long. His entire body felt numb, as if he had bathed in sub-zero waters for hours on end. So was this what death felt like? A vague memory told him no, that he had died before and something else had happened.

Suddenly, it felt like he had a hit a wall. All of his movement had stopped, leaving him floating in the blank space. Seconds later, a bright light appeared in front of him. It was barely even the size of a period -if even that- and was probably kilometers away. Did sizes and distances even exist in this dimension?

The strange light in the otherwise pitch black area proved too much for his curiosity to resist. He floated towards the light, but it didn't seem to get any closer. Instead, the pulsing light appeared to actually get farther away the more he swam towards it.

He wouldn't be beaten by a little light. He moved forward, increasing his speed. At least, he thought he was. It was quite hard to tell. Finally, the light seemed to actually be getting closer. He surged forward, reaching his arm out -he could see his arm!- and, with a cry of triumph, brushed his fingers against the light.

The light filled the entire space, so bright that even shadows fled. His eyes closed at the the intensity. Had he not, the light probably would have burned his eyes straight out of his sockets in seconds. Even behind his eyelids, it was still like staring directly into the sun.

When he opened his eyes, he was staring up at a woman. He noticed that he seemed to exponentially smaller than he had last been, but also that the woman was holding him. She had a tender look in her eyes, and placed a kiss atop his forehead.

"Hello, Severus," she said. "You will become a wonderful wizard that will make the Snape name proud."

Severus? Last he recalled, he had been called something else.

Then it dawned on him. He had died, he knew that for sure. He had opened his eyes to a strange woman calling him a strange name. He knew for a fact that he was much smaller. He had been reborn, reborn into a newborn baby.

Itachi Uchiha, the man who killed his entire clan to protect his village, had been reborn as Severus Snape.

To most people, having a second chance at life would have been a dream come true. However, to Itachi it was more or less annoying. He had already been disturbed in death when Kabuto had used the Edo Tensei to reanimate him along with dozens of others. After defeating Kabuto and breaking the Edo Tensei, Itachi had looked forward to being able to rest in peace.

Itachi normally didn't believe in fate, but he was sure that someone or something out there was against him. Couldn't he rest in peace, or was this karma getting back at him for killing his clan?

Though slightly displeased at first, Itachi -or was it Severus now?- decided to make the most of this new life. Due to being a baby, his parents would also talk about things that they normally wouldn't talk about in front of him otherwise. Most of the time they seemed to argue about something called "Magic".

Apparently his mother was a witch, someone who could harness magic. His father, however, could not use magic, making him a "Muggle" if Severus understood his mother correctly. Because of this, Severus was a "Half-Blood", someone who had one magical parent and one muggle parent.

At first his memories of his previous life were fuzzy at best, as he was only able to clearly remember a few things such as his name. However, as he continued to grow older, his memories of Itachi began to grow clearer. Now he could remember his days as a ninja of Konohagakure, his days as an ANBU, and his mission to eliminate his entire clan.

Although he wanted to try to forge a new life, Severus knew it would be impossible as long as he had his memories of Itachi. Instead of hating it, Severus decided to use the knowledge of Itachi to his advantage. As soon as he was able to stand on his feet, he began to secretly train up his body to once again handle the power that he had had as Itachi.

Although it wasn't easy. Being a child in a non-ninja society, Severus found himself hard pressed to find any time to train as he got older. As a child, most of his training had been mistaken as the normal bumbling of a toddler, but that excuse wouldn't fly as he was older.

As he continued to grow, he found himself being more and more ignored by his father and his mother. His father seemed to hate magic, and did all he could to punish Severus. Severus's mother seemed to be disappointed about him since he wasn't shooting powerful accidental magic left and right, which was partially because he just simply had really good control over it.

He remembered the first accidental magic he had performed was simply making a spoon fly into his hand. His father's eyes had nearly popped out of his head, and the vein above his left eye had throbbed dangerously. Severus had spent the rest of the month in his room, although he had still snuck out against his father's orders.

Had he been at a stronger power level, Severus would have simply used force to make his father stop with the abuse. Nothing too violent, but just enough to get the job done. Instead, Severus mostly just used his stealth to stay as far away from his father as possible.

Severus briefly wondered if this was how Naruto had felt during his childhood days in the village. He also wondered if the vessel of the Nine-Tails had managed to beat Madara. Probably. That boy had tons of determination and was harder to kill than a cockroach. That, and the fact that he was alive now and the entire world wasn't in some mega-illusion. Of course, there was always the possibility he had been reborn in an alternate dimension...

Because of his parents and their frequent arguments, Severus often walked around the neighborhood, noticing how ignorant Muggles were of the magical world. Many times they would see things clearly of magical origin, and yet they would brush it off as a fluke of science or something of the like.

However, when it came to magic, Severus was curious. He wanted to figure out how magic worked; probably because of his shinobi origins. Was magic similar in any way to chakra? And once he got to Hogwarts, he would start trying to unwrap the mysteries of magic. Until then, he would have to endure his parents constant shouting while continuing his training.

At the age of eight, he finally managed to activate his Sharingan and could cast some mid-level genjutsu and ninjutsu. The illusions came in handy whenever he wanted to sneak out during an argument between his parents. And ever since he had turned nine, his parents seemed to fight more and more. He could rarely be in the house without the two breaking into an argument, like a couple of children fighting over a toy. Hmm, did that analogy still work even though that he too was a child.

As his parents began another fight, Severus slipped out the front door. Walking towards the park that was just down the road from his house, he wondered if that girl that he had met last week would be there?

When he got there, he saw the distinctive red hair of the girl that he had become friends with, Lily Evans, a muggle born witch whose talent at magic was nothing short of prodigious.

He called out her name and she turned her head to look at him. A wide smile gracing her face, and she ran over to him. The two sat down on the grass, and began conversing. The topics switched from how Lily's sister, Petunia, was starting to grow more distant, to Lily asking Severus about his heritage.

"So are both your parents wizards? You know too much about magic to be like me," the redhead said. Severus had been expecting this question for a while. Ever since they had become friends, he had been telling her everything he knew about the magical world, but had yet to tell her that he was a half-blood.

"No," Severus answered, "My father is a Muggle, but my mother is a witch. She told him during their honeymoon."

"Wow, your father must have been amazed."

Severus frowned and stared at his hands, making Lily look at him in confusion. "Actually... my father hates magic, even if it can't be controlled."

The quietness that followed meant that Lily had grasped the hidden meaning in his reply.

"I'm sorry, Sev. I didn't mean to bring up bad memories."

"It's fine," he replied. "Now let's see, what to talk about next. Ah! I know..."

And for next several hours he held Lily in rapt attention, telling stories he had heard about Hogwarts and the four houses. He was in the middle of telling her a story he had heard about a man named Dumbledore facing a dark wizard named Grindelwald. However, before he could finish the story, he noticed that it was starting to get late.

He didn't want to think about what would happen if he was late to dinner.

"Sorry, I should get home. I'll finishing tell you the story next time." With that, Severus stood up and began to walk back home.

"Hey, wait," Lily called out, stumbling up and chasing after him. "I'm sure you could stay for a little bit longer."

Lily suddenly stopped when she felt two fingers poke her forehead. Severus gave her a small smile.

"Forgive me, Lily," he said. "I'll finish the story later."

Lily pouted and crossed her arms out in front of her. "No, wait up. You said yourself that your parents don't exactly pay attention to you, so come live with me. I'm sure my parents would be glad to have you."

Because of Itachi's memories, Severus couldn't help but think about the implications of those words had the two of them been adults, but he knew that Lily was just a kid and meant it in a purely friendly way.

But that didn't stop Severus from turning slightly red.

"I'm not sure that's such a good idea," he responded, but she wouldn't have any of it.

"Nonsense, you're staying with me and my family from now on and that's final. Go grab your things and I'll go tell my parents, I'll meet you back here."

And with that, she ran off towards her house, making Severus sweatdrop. With that red hair and stubborn streak, Severus wondered if she was descended from the Uzumaki clan…

Sighing in defeat, Severus headed back home to pack his things. As he headed through the door, he could immediately tell that something was wrong. His finely tuned ninja senses told him to be careful as he crept through the hall and into the living room.

And unfortunately, his gut was right. He stepped into the living room, and his stomach dropped as he saw the scene in front of him. His father was holding a gun to his mother's head.

His father turned to face Severus, and Severus wished he had grabbed some sort of weapon from the kitchen. If he had to do something, he would have to rely purely on his ninjutsu.

"So you're back, huh, boy? No matter, I'll simply kill you as well as your mother."

Severus clenched his fist, and his Sharingan blazed to life, surprising both of his parents. "Why are you doing this? You'll get arrested."

His father snorted. "For what? I'm simply helping to wipe out a disease, like I should have done long ago."

"Severus, run! Get away from here!" Severus's mother shouted, and Severus's father whipped her across the face with the butt of the gun, causing her lip to break open, and blood spilled down her chin.

"Shut up, woman!"

Severus glared at his father, and if looks could kill, the man would have been dead many times over. He knew that there was no way this would end peacefully, but he still had to try. "You better stop this, or I'll kill you."

"With what? You're powerless!" His father's finger began to press against the trigger. "This is the end."

Although Severus tried to go through the hand signs needed to cast a jutsu, his body wasn't fast enough. The trigger was pulled, and all Severus saw was the splatter of blood as his mother's body slumped to the ground. He stopped trying to cast the jutsu as he watched the blood spill out from his mother's wound.

Despite the fact that she and Severus had been estranged as of late, he still couldn't help but feel an immense sorrow at her death. As his father turned the gun on him, Severus instinctively pumped chakra to his eyes.

"Your turn, boy."

"No," Severus replied, feeling an even heavier drain on his chakra system as he looked into the eyes of his mother's murderer, "it's your turn! AMATERASU!"

Before his father could pull the trigger, the man was consumed in an inferno of black flames, the air itself burning and wavering around him. Severus listened to the screams of his father, who tried everything to extinguish the flames, but there was no escape from his death sentence. Unless Severus himself called off the flames, the Amaterasu flames never stopped burning until their target was completely decimated. And so Severus watched his father burn until nothing was left but ashes.

Severus fell to one knee weakly, and felt the blood flow from his eye. It would seem that watching his mother die by his father's hand was traumatic enough for him to unlock his Mangekyo Sharingan, and unfortunately, this body was not used to the strain.

He looked at the ashes of his father, feeling no guilt about killing him, but went over and stared at the lifeless body of his mother. He had never really hated her, and being unable to save her shook him to his core.

He had no idea how long he stayed there, but he was only snapped out of his stupor by the door opening and Lily walking in.

"Severus, are you here? You didn't show up at the park, so I came to check up on you," she said, still in the entryway. "The door was open, I hope it's okay for me to come… in." Her speech paused as she rounded the corner and saw the scene in the living room. Severus had no doubt that she had never seen anything quite like it, but it was nothing compared to many of the things that he had seen as Itachi.

Lily rushed over, asking so many questions at once that Severus couldn't keep up. She checked him for wounds, scrutinizing him like a health inspector on a job. He placed a hand on top of hers and smiled reassuringly. "It's fine, Lily. I'm okay."

"But-"

"Lily, let me grab my things and let's head over to your house." Knowing the question that was probably on her mind, he then added, "My father kept me secret from the neighborhood anyway, so no one's going to notice me missing."

"Where is your father?"

Severus was silent for a second before turning his head to look at the ash on the floor, and Lily followed his gaze. Her eyes noticeably widened, and he was glad that she didn't ask him how it had happened.

"I had no choice, he had killed my mother and was about to kill me."

Lily looked at him and smiled kindly. "It's okay, I understand. Let me help you with your stuff."

Severus nodded and quickly went to wash off his face. Then, he and Lily started grabbing his things, taking everything so that there would be no trace of his existence in this house.

As the two walked towards the door, Severus glanced over at his mother once more. A wetness traveled from his eye down his cheek, and he reached up to wipe away the tears. What was with this? He needed to be strong, he couldn't cry now.

Lily seemed to notice his plight. "Hey, Sev, it's okay to cry, ya know. It's what makes us human. True strength is being able to let your emotions loose; it isn't healthy to keep it all bottled up."

Severus followed her out the door, thankful that he was able to have a friend like her. "Yeah, I suppose you're right."

With the street lamps lighting their path in the dark of night, the two children continued down their path, but even they had no clue as to just how hard and painful the road ahead of them would be.

And there is the redone version of chapter one, which is much longer that the original and shows a very big change from canon. Now just a couple notes before I go.

Severus's Power Level: I think this chapter showcases the fact I mentioned up top when I said that Severus's wasn't going to be a powerhouse right away. His new body needs to be trained up first, and it will be harder considering his in a more modern environment where the idea of ninjas doesn't exist.

Severus's Sharingan: I think eight is a reasonable age for him to get his Sharingan eyes again, but keep in mind that these are completely new eyes. That's why it took a completely new traumatic event to activate the Mangekyo stage.

I hope you guys enjoyed this redone chapter and the different backstory of Severus. With him now staying with the Evans family, I wonder just how the story will shift? Heh heh heh...