The Immortal Pirate (One Piece And KNY Fanfiction)

This Fanfic Follows The Story Of Hayden Thomas Borrow, A Human Who Was Transformed Into A Demon By Muzan Kibutsuji, And Is A Current Member Of The Straw Hat Pirates. Hayden Was Born On June 7th, 824, Somewhere In The East Blue Around 698 Years Before The Formation Of The Straw Hat Pirates, And Around A Century After The Void Century, To A Small And Poor Village Where He Was Forced To Work For Money And Provide For His Family. When Hayden Was 15 Years Old He Would Join A Sea Fairing Crew And Sail The Seas For The Next 2 Years. When He Was 17 Years Old, In 841, He And His Crew Came Across A Strange Island Called Wano, In The New World, Where He And His Crew Would Be Taken As Prisoners, For Couple Of Days, Due To The Instability Of The County At The Time But Would Be Freed, After He And His Crew Agreed To Help Them During An Important Battle. Half A Year Later He Would Meet A Man Named Muzan Kibutsuji, The Progenitor Of All Demons, And Would Become A Good Acquaintance Of His Until Kibutsuji Transformed Him Into A Demon, Which Made Hayden Swear Vengeance On Muzan No Matter How Long It Would Take. 5 Years Later, In 846, He Would Meet Another Demon Named, Tamayo, Who Also Hated Muzan, And The Two Would Join Forces And Work Together To Defeat Muzan Kibutsuji For The Next Few Centuries, As They Would Set Up A Life In Which They Could Study The Biology Of Demons And Seek A Cure. After 200 Years Of Study, In 1046, Tamayo And Hayden Became Capable Enough With Medicine To Modify Their Bodies So That They Can Function Without Eating Humans, Only Human Blood. 400 Years Later, In 1446, Hayden And Tamayo Would Meet A Boy Named Yushiro Who Suffered From A Terminal Illness, But Tamayo And Hayden Would Transform Him Into A Demon. 20 Years Later, In 1466, Hayden Along With Tamayo And Yushiro Would Fight With The Demon Slayers, An Organization Dedicated To Killing Demons, During The Battle Of The Infinity Castle To Defeat Muzan Kibutsuji Once And For All.