Den Den Mushi
In our daily life, we use phone to communication, however, in One Piece, this tool has evolution to a magical level, they needn’t use any line or medium. There is one kind of inset named Den Den Mushi who seems like snail and some have spots or strips on their body, there have a interphone and button on the top of their shell, they will sleep as it is not contact, and they will wake up when connect and make a sound. Den Den Mushi can grow up, how cute!
Yagara Bull is the vehicle of Water Seven, they are the intelligent ships. Water Seven is set in Venice, the BULL seems like all kinds of ships which shuttle in Venice, however, Bull is one fish which can upstream, who comes and goes from Water Seven.
Seastone is one stone who can eliminate the strength of Devil Fruit, its composition is same as sea, in short, and it is crystallize of sea. Seastone is one mineral, we could say it is the fixed form of sea. So the Devil Fruit fear Seastone very much, when the Devil Fruit meets it, they will show up their weakness appearance.
Dials, the shells of certain sky-dwelling animals, can be used to store wind, sound, images, heat, and the like and have various applications. Sky-dwelling is one place most close to the paradisiac, there have attractive scenery and mysterious species and rare. Dials is one of them, it have many different types, people could use them to make different weapon.
Devil Fruit is a type of fruit which when eaten confers a power on the eater. There are three categories of devil fruit. Zoan fruits allow the user to fully and partially transform into a specific animal. Logia fruits give control over and allow the user “to change their living body structure into the powers of nature”. Paramecia is a catch-all category for fruits that give the user superhuman abilities. Although the Devil Fruit is very magical, it is also have shortcomings, the people who eat Devil Fruit will be put away by the sea, and become a landlubber fowever. If you fall in to sea, then, you will face to death.