A young woman breathed in the sea's salty air on her ship as her vice admiral marine coat flew in the breeze along with her long black hair with a f/c streak in it as a cadet came up to her shaking. "Queen, a new bounty name." The woman glared at the man making him shake in fear as she took the paper as her e/c eyes widened and smiled. "Good for you little bro, I'm coming after ya." She said before whistling sharply. "Set sail men! We are going hunting!" She yelled out as she climb onto the ship point as her bare feet turn the wood into pure silver she laughed happily.

"I'm coming to ya, Luffy!" She shouted out. Days passed by as her ship docked on a isle as Y/n told her men to stay there as she walked onto the dock breathing in the air as she walked through town til a explosion filled the air. Y/n ran towards a cliff as she found marine cadets fighting a crew of unknown people.

"HEY! IDIOTS!" She yelled out loud making the cadets stop as they all looked up at whom yelled as the men dropped their weapons in fear. "Queen of Treasures! Ma'am!" Her e/c eyes looked over the crew as her eyes widened before she jumped off of the cliff creating a giant crater beneath her feet as she walked out of the crater as the sun showed her once tanned skin was hard diamond. "Wait a minute..." a young man with a straw hat walked over to her as the diamond skin left. The crew tried to stop their Captain til the pirates and marines sweat dropped as the two hugged laughing.

"Looks like you became a pirate little bro!" The pirates and marines screamed out shocked. "Little Brother!!" The young woman looked over at the crowd smiling before glaring at the cadets. "Get out of here you idiots! Your cadets, rookies not true marines yet!!" At her words they all fled as she removed her coat and tossed it onto ground with a treasure chest tattoo on her right shoulder, she wore jean shorts with a f/c tank top but her feet were bare, on her waist were two diamond blades.

"Yo, I am Luffy's Big sister by blood! Monkey D. Y/n a vice admiral marine captain but pirates know me as the Queen of Treasures!" Y/n shouted out smiling like Luffy til a blonde man got a massive nosebleed. "Huh? What's wrong with him?" She asked while leaning down looking at the new people til a red haired woman placed her coat back onto her shoulders thus covering her b/s.

"Don't mind him, he's a pervert. I'm Nami the straw hats navigator." Y/n's e/c eyes widened slightly before darkening. "Ew...well I just came to do this." She said before pulling out her swords and pointed them at the crew. "Family or not Luffy, your under arrest for piracy." She said while Luffy looked at her sadly til she smiled sweetly sticking her diamond blades into their belt sheaths confusing everyone til she tossed a snail phone at Luffy.

"Keep in touch baby brother. Call me up if you and your crew ever need help." She said before turning around as something grabbed onto her coat. Y/n looked down at the ground seeing a cute blue nosed deer as she knelt down carefully. "Your really Luffy's family?" She nodded softly as she booped the blue nose. "Yep! And I'm counting on you all to watch out for him for me." Y/n said before standing back up and waved goodbye. "See ya Luffy on the sea and your Straw hat pirates." She said while walking back to the docks to her ship. "Let's go men! To the World Government Building!" She yelled out loud as she watched her crew scramble around the deck and the ship headed off into the sea water once more. "I believe in you Luffy, Become the King of the Pirates!"

Y/n looked onto the waters seeing a ship with a ram on it seeing straw hat skull sails. "Ma'am the straw hat pirates!..." Y/n glared at her crew thus making them silent. "Leave them and let's go!" Y/n shouted out as she held herself on the rope ladder watching her brother and his crew sail off smiling.