Summary
After more than 20 years in the making, many mysteries surrounding theOne Pieceseries remain to be solved. InOne Piece, Eiichiro Oda built an expanse of worldbuilding, and his masterful use of foreshadowing often plants subtle hints and clues early on that become significant and impactful later in the story. The story utilizes foreshadowing to build anticipation, create mystery, and establish a sense of depth and continuity.
Coupled with this, Oda occasionally drops hints and cryptic statements through dialogue or narration that foreshadow future events or plot twists. These can be easily missed on a first read but gain relevance and meaning as the story unfolds.The mystery surrounding who the new Joy Boymight be is presumed to be none other than Monkey D. Luffy. However, the true identity and race of the first Joy Boyremain unknown, but Oda has left many breadcrumbs and hints throughout the series.

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The Concept of Bloodline
Bloodlines are integral to the succession and inheritance of power inOne Piece. The descendants of the founding families are seen as World Nobles and maintain their dominance through their bloodline. In this way, the bloodline plays an important role in the series, and it has been significantly dictating the role of the oppressed and oppressors. An example is how the Celestial Dragons treat fishmen and humans as properties. The significance of bloodlines extends tothe knowledge of ancient weaponsand poneglyphs, which are essential components of theOne Pieceworld’s history and future. Certain families and individuals with specific bloodlines, like the Kozuki Clan and Nico Robin, can read poneglyphs, which contain critical information about the world’s history, lost treasures, and the location of Ancient Weapons. Bloodlines are a key factor in preserving and unlocking this knowledge.
In the flashback to the events at God Valley, Kuma told Saturn that if he possessed any ability through the Devil Fruit, he would use it to save people, just likethe Sun God Nika. However, Saturn declared that the Buccaneer race deserved annihilation for that reason. In other words, the strong desire to eradicate a whole race by the World Government is always to preserve their rule.The destruction of O’harabecause of their venture into the Void Century treads the same line with their fear of the re-emergence of a new Sun God, Nika from the Buccaneer bloodline. After all, to the World Nobles, the bloodline transcends all. There is a strong belief among the Celestial Dragons that bloodline and a person’s destiny are bound together since it is through their royal blood that they became rulers of the world.

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The Big Straw Hat At Mariejoise
The portrayal of Imu as a highly influential figure at the pinnacle ofthe World Governmentwould play a vital role in shaping the world ofOne Piece. After the Straw Hat pirates reclaimed Dressrosa and the news became viral, chapter 906 of the manga and episode 885 of the anime revealed a shadowy figure presumed to bethe great Imuand a big straw hat in a cell. At that time, fans can only observe that Luffy has a connection to a revered figure in the past. However, with the revelation of how Sun God Nika is a legend passed on in the Buccaneer race, the revealment of the big straw hat aligns with the theory that Sun God Nika might be from the Buccaneer race, hence their destruction by the World Government.
The Buccaneer race is a race of people who have giant blood running through their veins. This means they are physically huge but not like giants and possess massive strength, hence the theory that the big straw hat in Mariejoise could belong to a figure in their race.Oda is a great user of foreshadowing, and it is no surprise that the recent backstory of the Buccaneer race and Kuma in the manga can be linked back to the big reveal of the straw hat sitting in the dark moldy cell of Mariejoise. This straw hat in question can be presumed to be a property of the old Joy Boy, whose legend was spoken among the Buccaneer people for generations.