Monkey D. Luffy, the protagonist of Eiichiro Oda's One Piece manga, is known for his many epic adventures. He is one of the most famous anime characters in history, and his adventures are known and followed worldwide. But only true One Piece fans truly know Luffy's family and his family history, which is why we decided to write this article to introduce you to one aspect of Luffy's character. In this article, we will tell you about Luffy's family, focusing specifically on whether or not he has a sister in One Piece.

No, Monkey D. Luffy does not have a sister in One Piece; in fact, as far as we know, he has no biological siblings. He was raised by his grandfather after Dragon left him when he was still a child, and as far as anyone knows, Dragon did not have any children aside from Luffy. If he did, however, they would be his half-siblings, as Luffy's unnamed mother only gave birth to Luffy as far as is known at this point in history. Any "sisters" you might encounter online are fan-created characters.

The rest of this article will explore Luffy's family history and, in particular, whether he has any siblings in the world of One Piece. And while we've already discussed his "brothers," we'll now focus on Luffy's supposed sister and her existence in the series. If you're not fully up to date on the events of One Piece, this article may contain significant spoilers, but we must clarify that no new information will be presented here, as we'll be focusing on old and well-known facts about the three of them.

No, Luffy doesn't have a sister, and that's unlikely to change at this point in the story.

The story of Luffy's family, the Monkey family (yes, Monkey is their last name), is intriguing. We currently know three members of his family; each is quite powerful and presents completely different aspects of the story. Luffy's biological father is Monkey D. Dragon, the leader of the Revolutionary Army, who was never present in Luffy's life and left his son in the care of his own father, Luffy's grandfather, Monkey D. Garp, who works for the Marines despite following his exploits throughout the series.

The identity of Luffy's biological mother is still unknown; his adoptive mother was Curly Dadan. According to Oda himself, Luffy's mother will likely never be introduced. As for Luffy, we know that he is a pirate.

As for his siblings, Luffy has two "brothers," Sabo and Ace (okay, he only has one now, since Ace is dead, but you get the point), but the three aren't related by blood. Because of his close friendship with Sabo and Ace and the pact they made as children, the three of them could be considered "brothers," but not biological brothers. That would mean Luffy has two brothers, but they're symbolic, not biological. That settles it, but does Luffy have any other siblings?

If you browse the internet, you'll find many articles related to a character referred to as Luffy's sister. The sister usually goes by a different name each time, which has caused a lot of confusion among fans and led us to step in and settle the debate. As true One Piece fans know, Monkey D. Luffy doesn't have a sister. In fact, as far as we know, he has no biological siblings.

Oda hasn't hinted at a sibling, and it seems unlikely he'll introduce one this late in the story. Therefore, we can confirm that Luffy doesn't have a sister.

Luffy apparently has many sisters... even though he has none.

But before we conclude, we'll just introduce you to the most common suspects when it comes to Luffy's sister so you know you've located a fan-made character and not a real thing:

Monkey D. Mikasa

This character appeared in a Wattpad fan fiction by author femreader and was described as follows:

Monkey D. Mikasa is Monkey D. Luffy's older sister. She helps her brother achieve his dream (to become the Pirate King), find a crew, and more. During their journey, they meet new crew members, new friends, new adventures, and new enemies. But what is Mikasa's dream? What is her role in this story? And will she be able to stop his nightmares?

femreader, One Piece Luffy's sister: your guardian angel

One Piece Figure

Come see

Monkey D. Aika

This supposed sister appeared on the saintpirates Wiki, though it's unclear how or why the page changed. The character's creator appears to be a user named Bige1218, but the article has been heavily edited since the original posting. The original post said the following about her:

Monkey D. Aika is a young pirate-in-training and the cabin girl of the Straw Hat Pirates, being one of the three youngest members of the crew. She is the younger half-sister of Monkey D. Luffy, daughter of Monkey D. Dragon and Kamiya, half-granddaughter of Monkey D. Garp, adopted younger half-sister of Portgas D. Ace and Sabo, and owner of the young Akita puppy, Kumi. Her dream is to become a great pirate like her older brother when she grows up, while continuing to be brave and stand up for what is right in the midst of a crisis, no matter how many times others tell her to stay put.

saintpirates.fandom.com

These two "sisters" are most often listed as Luffy's siblings, but as we explained, they don't even exist.