Hello this is my first fanfiction and I hope that you will enjoy it, anyways this is a time travel fanfiction if you couldn't tell from the summary, or if you didn't even bother to read the summary, in fact there might be people that won't read this section and just skip to the story, anyways enough of that, now to talk about other things, so yeah this story will have Luffyxharem, I still don't know if I should ship Zoro with Tashigi, Perona, or both, I can't think of anything other than Violet for Sanji, I will obviously have UssopxKaya, thinking about possible Nami pairings, if I don't include her in Luffy's harem, but there is a very low chance of her not being in that harem , but gotta have a backup plan just in case, you never know what might happen, so continuing on, I'm not sure of if I should pair Robin with Zoro or Franky, in the case with Zoro and Robin, it's the same case with Perona and Tashigi, one or all, and I'll think about Franky and Brook's ships when it comes to it, tell me your opinions on who should be with who, also in this fanfiction Luffy is more mature and smarter.

Disclaimer: I don't own One Piece, it belongs to Eiichiro Oda. (If I did then I wouldn't be writing this would I.)

A Child Dies, and A Demon is Born

Luffy couldn't imagine a worst sight then his nakama dieing before him, and yet that is what was happening right now as they were all perishing before his eyes, and who was it killing all his nakama right now, why it's the same person that killed his brother, "Akainu!,", "What is it Mugiwara, I've already killed all of your nakama, what is there left for you to fight for," said Akainu, "Nothing, but I'm not gonna put my nakama's sacrifices to shame, I'll defeat you and find the One Piece, even if all of my nakama are dead, I know they died to help me achieve my dream, even though they sacrificed their dreams, if you kill me here, I know I'll put their sacrifices to shame, so I won't die, here even if you beat me down, I'll still get up to honor their sacrifices," said Luffy as he entered gear second, "You still chase after your dream, even though you nakama are dead, well looks like, I'll have a challenge killing you, but I like it better this way, because this'll at least give me a challenge," and after their words before combat were over, they started their fight, they were both evenly matched during the beginning, and as soon as Luffy realized that he turned into gear third and attacked Akainu, but Akainu used the giant size of his arm to get in some magma shots to hit his arm, and after an intense fight and Luffy turning into gear fourth Akainu ended it and shot a pillar of magma directly through his heart and burnt him in magma, and he returned to his ship and sailed back to Marine Headquarters, you may think that this was the end of Monkey D. Luffy's story, but this is far from it, lets see what was happening inside his mine as he slowly burned in the lava, "That's it, I died, I couldn't honor their sacrifices, if only I were stronger than I could have saved my nakama and beat Akainu," "What if you could redo your whole journey, with you having the strength you currently have, but with the option to grow even more stronger along with your nakama," said a mysterious voice, "Well that would be great but, its impossible, wait who's there, where are you," "Relax, relax child, I'm only here to give you a second chance, to redo you adventure, I'll also send your strength, memories, and also your scars, to help you along the way, well the scars are to remind you of what could happen if you don't change anything, but I'll also give you a different devil fruit and have you train with the devil fruit for months until you master it and are able to combine it with your haki before I send you back, though the only thing that will change when you go back is you age and height, also your weight, that is if you accept my offer," "Why wouldn't I accept your offer, I'll get to be with my nakama again, and also be able to change some things," "Okay then, now I'll start by transporting us to an island where you can be away from all this magma and where I can heal you, so that I can give your new devil fruit, you can train, and I can send you back in time, "Okay," "Now then I'll just use my time power and bring you to where I am, which is an island you should know well," and after he was finished speaking he sent Luffy to where he trained with Rayleigh on Haki, and when he got there, his wounds got healed and he was back to the condition it was before the incident happened, "What did you do?" asked a confused Luffy, "Well I just used my time powers only your body, so that it would go back to the condition it was in before your battle with the marines, so now, I need to give you your new devil fruit, just wait for a bit, will you," said the mysterious man as he went to grab a case, "Ah here it is, now than before I give you this devil fruit, I need to remove your devil fruit, just wait a bit," he said as he held out his hand which glowed a bronzish color, and suddenly, the gum gum fruit appeared in his hands, "Ok now that that is done, to give you this devil fruit," he said as he handed Luffy the case, when he opened the case he saw a black devil fruit with scythe shaped swirls, "Which devil fruit is this," asked Luffy, "Why it's the Reaper Reaper fruit," answered the mysterious man, "What kind of devil fruit is it, and what does it do," "Well this devil fruit is a zoan type, and will give you the ability to transform into demons, it'll also allow you to steal souls from people, but what matters now is that you need to eat it," "Ok," Luffy said and he ate it, "Now how do you feel," "A bit strange, but I feel a power, and it is starting to flow across my whole body, hmm, now I feel two beings inside of me, I'm not sure who they are, but I'm gonna find out," said Luffy.

"Inside Luffy's Mind"

"Who are you two," asked Luffy, to two mysteriously shaped figures with wings and horns, one humanoid and another beast like, "Why we…" started the humanoid, "Are the two demons from the reaper reaper fruit that you have unlocked, ahaha," ended the other, "And for now you will need to master using both of us, if you intend to awaken the demon that is our boss, and awaken the other demons, like the true master," they both said simultaneously, "Who is this "true master"," asked Luffy, "Why he is the one in control of the factions," started the humanoid, "In each faction there is the boss demon and it's underlings, the boss demons get their orders from the true master, but it's been a millennium since any demon, except it's under demon, has seen him, but you might be the first to see him, now exit your mind, you need to overpower the demonic powers and regain control of your body, now go, ahahaha," "Wait, what are your names," "We are, Gento (jen-toe)," "And Beastra, now go."

"Back With Luffy and the Myesterious Man"

"Finally, you have awakened from your thoughts, I have paused the demon powers, but now it's time for you to regain you're body," he said as he stopped his hold on the demonic powers, "Ok, thanks now than I'll get on that," Luffy said as he regained control of his body with his will, and so after that day they started their training.

A year later

Somewhere on the island we find a more mature looking Luffy meditating on a rock, "Hmm, looks like it's finally time to go back, now then it's time to go."