I finished this story, but I don't really know if the ending is satisfactory, so I have begun a part two, but no matter what, the first part (or only part) will be uploaded complete. Enjoy,~

Dark Luffy didn't make himself known for two whole days. You'd think Luffy would have liked that. But he didn't. He didn't like not knowing when the monster inside him would suddenly start talking, startling Luffy painfully. Luffy spent most of this time with Ace, trying to ignore all the looks he was given by many of the crew. He didn't blame them, but it still made him feel like a piece of trash. Looking at these pirates, carrying their weapons, Luffy wondered how many of them would kill him if Dark Luffy came back.

How old would Luffy live to be? Though he wanted that age to be high, he knew that it probably would not be. He'd get caught eventually and killed for revenge of whoever he killed to make his executor angry. And what would Dark Luffy do if they were cornered like that? Luffy had a strong feeling that he'd protect Luffy's body by boosting his powers like crazy.

Dark Luffy was always stronger when Luffy agreed to let him take over. It didn't happen much, but when it did, thousands of people die. Like the auction house, when Luffy asked him for help. Even the buildings next to the auction house were decimated.

"Do you want to meet Thatch? We think he'll wake up soon, since he's getting a lot better," Ace offered after they ate lunch together, like always. Luffy nodded. He wanted to meet Ace's good friend. He wondered if he'd actually get to talk to Thatch before he was dropped off, too much trouble for the Whitebeards to take care of.

Luffy followed Ace through the hallways and to a big, white room. It was very clearly an infirmary. If not for all the equipment, the smell gave it away. The mental institutions doctor's office had smelled like this. It didn't bring back nice memories. Luffy wouldn't want to be in this room too long.

Thatch was a nice looking man. He looked like he'd have a nice smile when he woke up. Luffy watched as Ace talked to the comatose man, telling him that he had to wake up soon so he could meet Luffy. Luffy smiled softly. He really liked Ace.

Then…

"He looks very fragile." Luffy gasped. He began to shake, and it got Ace's attention. "I wonder what it would take for him to suddenly die. Don't you wonder, too?" Luffy almost started to cry. He hadnt in what felt like a long time. It was long overdue.

"You okay?" Ace asked, voice full of concern. Luffy nodded automatically. "Did he come back?" the man asked with a hard voice. Luffy just looked down, shuffling his feet. This was all the answer Ace needed.

"Ace sure seems to care about this man." Dark Luffy just sounded curious, but Luffy knew that was just him toying with his head. Luffy suddenly sprinted out of the room. He had to get away from Ace and his friend. He heard Ace calling for him, and the sound of his steps coming after him.

Luffy ran down the hall and to his dusty room that he slept in. He threw the door open and then slammed it shut, locking it behind him. Then he went and crawled under the bed. He was breathing heavily, and not from the mad dash he'd just made. He ignored Ace as he knocked on the door and called Luffy's name.

"Why are you so mean to me?" Luffy asked the air quietly.

"It's better to be feared than loved." Luffy's face scrunched up in misery. "Keeping you scared is what fuels me. So be afraid. I can take you over any time I want to. I can do whatever I want. Whether you agree or not. Even if I'm only let out for a little while, I still get closer to full control. And there is nothing you can do to stop it…" Dark Luffy said quietly inside of his host's mind. "And you know that, don't you?"

Luffy began to sob quietly, knowing full well that everything Dark Luffy said to him was true. Luffy wanted off this ship. Away from Ace and the people he cared about. "If I stay, Whitebeard will keep you under control," Luffy mumbled, then immediately terrified of Dark Luffy's anger. But what he felt was instantly fear, making Luffy sweat bullets as he felt it second-hand.

"Don't you remind me! But if he kills me, then it's by killing you! You should be more afraid than I am!" Luffy whimpered and buried his head in his arms, still lying under the dusty bed. He'd been sleeping on the floor under the bed, feeling more secure, though the monster haunting Luffy was inside of him, always there. He'd never escape.

"I hate you…" Luffy whispered, but unable to summon any bite to his words. It was more like a whine.

"You shouldn't hate me. How many times have I protected you?" Dark Luffy asked softly, toying with Luffy again. Luffy chose not to answer. Just laid there, his head buried in his arms, hoping the monster was done talking.

Luffy woke up by the loud order from his haunter to go get some food. Luffy crawled out from under the bed slowly, still sleepy. He hurried when Dark Luffy barked at him to go faster. He was getting meaner. Taking out his own stress on Luffy more than he had even before he made his appearance.

Ace was outside the door, asleep for some reason. Should Luffy wake him? He walked over to Ace and tapped his shoulder. "Ace? Why are you sleeping?" Luffy asked quietly. He didn't wake, just snored a little louder. "Ace?"

"Leave him!" Luffy flinched and hurried away from him. He should be fine, he was just asleep after all. But he froze in front of the galley door. He felt very vulnerable without Ace there. He started to make a step forward, but then stopped. He didn't want to go in all alone and feel all the stares from everyone. "Just go in."

"I don't wanna go alone," Luffy whispered. "I'll go get Ace, he should eat, too." The little boy hurried down the hall and back to where he left Ace. He heard Dark Luffy scoff at him in his head.

The young man was still asleep, and wouldn't wake up from Luffy saying his name. So he blew in Ace's ear. He jolted awake with a "gah!" and then fell onto his side. Luffy did something he had never done before. He giggled. His eyes widened and he touched his hand to his lips. Did he just… laugh?

For one second, he felt rage from Dark Luffy, and it snapped him out of his happy moment.

"Why would you wake me up like that?!" Ace asked, embarrassed. Luffy looked down.

"Well, you wouldn't wake up when I talked to you, and I tapped you… so I did that to wake you up. Sorry," Luffy said meekly. He felt like he was being scolded. Ace just smiled at him sadly.

"Want to go eat?" Luffy nodded sadly. "He wants to go eat?"

"Yeah," Luffy replied quietly. Ace frowned. He really hated this monster hanging around in Luffy's head. And Dark Luffy hated Ace as well, but the man didn't know that.

The two walked down the hall and again Luffy was standing in front of the galley entrance, and again he hesitated. "...Ace? Keep a lookout in front of Thatch's door," Luffy said in a rush, then he flinched as he was reprimanded.

"Why?" Ace asked sternly. Luffy couldn't answer. He was scared of being yelled at again, and just shook his head vigorously. Ace didn't push him. He'd gotten the most important part, and that was really all he needed. "Alright. Let's go get some food."

It was night time, and Luffy was supposed to be asleep in bed. And he was in bed, waiting. Waiting for Dark Luffy to sleep or do whatever he does when he disappears for extended periods of time. Luffy kept his breathing calm and mid relaxed.

He didn't rush when he stood up and quietly walked to the library he'd seen. It had a desk. He'd gone in there with Ace for a little bit days ago. He hadn't opened the desk, but it had to be in there, or he was screwed.

He rummaged through the drawers when he found it: a roll of strong tape and a pair of scissors. He took a deep breath and quietly walked down the hall and finally to the deck. Now he began to hurry, not wanting Dark Luffy to be aware of what he was doing.

First, he wrapped the tape around his head multiple times until it was a gag. Then he moved on to taping his feet together. He could start to feel the tickling in his head, but Dark Luffy wasn't awake yet. So the boy then taped all of his fingers together. He threw the scissors and tape away, making a loud thud on the otherwise quiet ship.

Luffy hobbled to the edge of the deck. He was just done, done with everything, and he wouldn't let his body be used to murder Ace's friend. Ace was important to him, his first friend ever. Who didn't think he was crazy or evil. And he took the truth of the problem in stride and didn't shun Luffy away. Ace was a nice person, and Luffy was glad he'd met him.

"What are you doing -?"

Luffy jumped over the side, slipping through the water with a quiet splash. As he began to drown, willingly, Dark Luffy took over completely.

"Luffy, you fucking idiot! You're gonna kill us both! AND YOU DIDN'T HAVE MY PERMISSION! YOU DON'T DO ANYTHING WITHOUT MY PERMISSION!"

The blast of horrible haki woke everyone on the ship, all the crew members now on high alert for an evil little boy to try and kill someone. Ace sprinted out of his room the second he felt it, and instead of heading to Luffy's bedroom, he ran to the infirmary. Everything was fine in there… So he ran towards the feeling as he felt it growing fainter and fainter.

He ended up standing against the railing, horrified that the haki was coming from the water and growing fainter. And he couldn't go under to save him! Did he try to kill himself?!

Others were now on deck, and Ace began screaming for someone to get into the water and save Luffy. They hesitated for a moment, but then multiple non-fruit users jumped into the water. Luffy was unconscious, his body, including Dark Luffy, sinking down deeper into the ocean.

If he'd been awake, he would have screamed at the person dragging him back to just let him drown. He was done with everything, and he didn't want to kill anyone ever again. The last couple of times, he'd been horrified, but detached. And, like Dark Luffy said, he was protecting him from dangers. But this was different. He knew some of the people here, and knew Ace really cared about them, so he couldn't live with himself if he woke up and everyone on the ship was slaughtered, or if he was on some faraway island and learned the ship had drowned, or like a while ago, had exploded with people on board.

Dark Luffy was quiet in his head, also having been affected by the stress of drowning, and how it hurt. He'd only been awake for a few seconds and he used those seconds to curse Luffy and not try to swim up to the surface. Luffy had done a good job of making it impossible for him to swim back up. And his wings were dead weight once they were soaked in water. Luffy never went swimming for this reason and he just couldn't learn to in the first place.

When Luffy hit the deck, he was still unconscious and not breathing. Ace ran over and painfully ripped the gag away while some of it burned into nothing in his hand. Ace started performing CPR, furious with Luffy, but also feeling immensely sorry for him. Luffy really was breaking. Part of Ace wished he'd never picked Luffy up, because then he wouldn't be being driven insane so badly by the stress of Dark Luffy being on this ship.

He woke up as he coughed up water, not that much had gotten through the gag. Ace looked down at him in fury. It wasn't a nice thing to come back to life to. They just stared at each other's eyes for a moment before Luffy looked away.

Luffy was angry. Angry that Dark Luffy had sent out a signal to get help, and that he hadnt just drowned completely by the time the pirates knew where Luffy was. They ruined it! He'd come up with a lot of resolve to kill himself, and they all spit on it by saving him. It was clearly planned, so why didn't they just let him go? Be free from hell on earth. He turned his face away from Ace, clearly angry. Ace felt hurt.

"You should have just let me drown!" Luffy yelled at him. It startled Ace; he'd never heard Luffy raise his voice. And to yell at Ace was surprising. "Now he's gonna get revenge on me!"

"Hell yes I am."

Luffy flinched. His life was a never ending hell. If he could just will himself to drop dead then he would have done that a long time ago. He was only six and it was like this. He couldn't live the rest of his life like this. No, he'd find a way to kill himself with now one able to save him. But he was too chicken to slit his own throat.

Luffy had his clothes changed into another outfit that had been made for him and was locked in his room with a look out against the door outside in the hallway. He looked at the floor of his temporary bed, feeling empty, even as Dark Luffy taunted him.

"Shut up," Luffy said quietly. "I'm sick of you." Dark Luffy froze at his words. Luffy had never talked back to the monster like that before. Luffy barely flinched as Dark Luffy shouted at him.

"I'll kill myself eventually. When I get off this ship, I'm free to kill myself without anyone saving me. Drowning, jumping off of a cliff, pissing off someone with a weapon, getting a gun and shooting myself." He looked up at the ceiling. "It's only a matter of time."

"I hope you know I'll never let that happen. I won't let you kill us," Dark Luffy said quietly.

"I'm going to bed," Luffy announced. It was very late after all. And he was tired. His lungs still hurt a bit, but he ignored that and went to bed, on top of the covers and blankets.

Poor Luffy! It would be so awful to be him.