One Piece

One Piece is of the most noticeable franchises in Japan. Not only has it largely spanned over 800 episodes and chapters separately, but it's also the best selling manga with over 430 million copies sold, and also the third best selling comic series right behind Batman and Action Comics (Superman).

The story follows a pirate captain and his crew to find a hidden treasure.

Note: All of these characters in here are tall women. If you want giantesses, go to Giantess Wiki (specifically here).

General info about One Piece
Gol D. Roger, the King of Pirates, has accomplished his desires. During his day of execution 22 years before the start of the story, Roger's final words led to the Great Age of Pirates, in which many pirates try to search for his treasure, the One Piece.

The main story
The story mainly focuses on the character Monkey D. Luffy, the holder of the Gum-Gum (Rubber) Fruit, and his quest to find the One Piece. While he starts his journey all alone, he gathers a crew to help him make it through and forms the Straw Hat Pirates.

Amazon Lily Arc

 * Short summary:?

Source

 * http://onepiece.wikia.com/wiki/Story_Arcs