here is they story of one piece

story:

after ten years when shanks give him his presious hat and promising him to become greatest pirate. luffy decide to go on journey to they grandline to get they famous one piece treasure. one piece is a legendary treasure that whoever got it get to be they greatest pirate. that treasure bury in grand line.
grand line is a dangerous place to be many great pirate they went to grand line and never come back. in couple of episode luffy began to get crew so he can sail to grand line. i don't want to spoile you i will stop her for they story.

if you like adventure and fantasy anime series then one piece is your anime

i gave one piece 10/10

stay tune for comming review of samurai champloo, full metal achemist, scryed and orphen