"What the hell are these?" Urrutia, the head of the Seven Dependents of Purgatory of the Demon Heart Guild, asked suspiciously.

"Report to your lordship, these are Hailou Stones!" A soldier reported.

"Hailou Stone? What is it? ”

Hailou stone is a rare substance, a strange stone native to the "country of Wano", the hardness is comparable to that of diamonds, and it cannot be easily destroyed even if it is armed with color domineering. It is quite a crystallization of the sea, and its composition (salt, minerals, etc.) is similar to that of the sea, so it can be said that it is a fixed form of the sea, so those with Devil Fruit abilities are not only afraid of the sea, but also afraid of the sea stone.

Therefore, Hailou Stone is widely used in cages or handcuffs for those with ability, and even processed into weapons, and there have been decorations made of Hailou Stone in the story. Dr. Bekapaku, a scientist in the Navy, placed the Sea Tower Stone in the bottom of the Navy warship, so that the sea creatures saw the Navy warship as part of the sea, so that the Navy warship could safely pass through the windless zone of the great channel, but if the warship stayed in place for too long, it would still be spotted by the Sea Kings.

In the country of origin, "Wano Country", there is even a craftsman technology that can process sea floor stone to the size of a nail.

Listening to the creep's explanation, Urrutia nodded, then walked over to the pile of shells and asked, "And what the hell are these?" ”

"Oh, these are shellfish!"

"Explain!"

"Shellfish" refers to special shells formed from the remains of living organisms in places such as Sky Island and Fish-Man Island, some of which are extinct or endangered. In the daily life of Sky Island and Fish-Man Island, shellfish are widely used as lamps, stoves, tape recorders, and other facilities. The unique "sky warfare" on Sky Island is a special battle that uses various shellfish and processed clouds as weapons; The use of shellfish and clouds can be said to be a special culture on the empty island.

The function of shellfish is "store and cast", depending on the type, it can store different things (energy or matter), and there are also some that store the same things but cast in different ways.

Wind shells: The stored gas is released in the form of wind, and the amount of air stored is related to the size of the shellfish, which is used for ships or powerhouses. Gas can be stored as a combustible gas.

Jet Shellfish: It is a strengthened variety of wind shellfish with stronger propulsion.

Cloudshell: Storage clouds are cast in the form of clouds and can store any form of clouds, but due to the climate, they can only be used in high-altitude environments.

Sound Shell: It can record and broadcast, and is used like a radio. Through the latest technology, the Blue Ocean people have successfully bred and improved the sound shell, and sold in sets of two to become the popular "TD", which can be installed on headphones or players to enjoy stereo music.

Shellfish: Stored water is applied in the form of a sprinkler of water that can be used to extinguish fires.

Lampshell: Store the light, press the head and it will glow.

Slash Shell: Stored power is cast in the form of a slash that can be used to chop down trees or attack enemies. It was introduced from other places.

Shockshell: Stored power is cast in the form of a shock, but the user will also take damage.

Platoon Shell: It is an enhanced variety of Shock Shell, which is 10 times stronger than Shock Shell, but the user will also take a lot of damage. Endangered.

Flameshell: Stored Fire is cast in the form of a fire-breathing fire.

Rebe: Stored heat is cast in the form of thermal energy, which can be used to heat food or as a high-temperature weapon.

Flavored Shellfish: The stored gas is released in the form of a very weak wind. It can be stored as a flammable gas.

Image: Like a camera, it can be used to take pictures.

"Oh, I see, so what is a Devil Fruit?"

The Devil Fruit is a peculiar fruit, also known as the "incarnation of the Devil of the Sea", which allows the eater to obtain special abilities, and those who possess the Devil Fruit are commonly referred to as the Devil Fruit Ability (abbreviated as the Devil Fruit Person). One fruit has one ability, and a person can only eat one fruit. When the capable person exerts his ability, including the physical body, it will change with it.

As a fruit, the taste can be quite unbearable. Only those who eat the first bite of the fruit will receive the ability of that fruit, and there will be no change in the person who eats it afterwards, which means that there will be no case where the same fruit will produce multiple people.

The application of fruit power varies from person to person, and some people can even rule a country through fruit power. Capable people are not limited to humans, but can be creatures such as fishmen, giants, small humans, animals, etc., and there are also examples of people who have obtained abilities through technology by making objects or taking fruits.

Regardless of whether the capable person could originally swim or not, the capable person will be spit on by the sea after eating the Devil Fruit, and will be a landlubber for the rest of their lives. If the Fish-Man eats the Devil Fruit, he can still breathe in the water, but he cannot move in the sea on his own, and needs the help of a third party to pull it out of the water. As long as you soak in a certain amount of seawater, or if you only touch a little amount of seawater, but soak it for too long, the person who is able to do so will become weak. At the same time, items that have been soaked in seawater or items such as sea salt and heavy metals can also cause the capable to lose their power.

If the person with the ability is immersed in the sea, he cannot use any ability, and can only make the body sink powerlessly. However, if only a part of the body is soaked in water, the symptoms of general fatigue will be reduced and the ability to be used will be able to use the power. And some Devil Fruits that will make the constitution change forever, although the ability cannot be used because the whole body is immersed in water, but if it is through external interference or the help of a third party, it can still use the ability.

Although touching the sea water has an effect on the able, rain, showering, and daily use of water will not have any effect on the able. In addition to seawater, rivers and hot springs can have a similar effect on flooding half of the body, so it can be said that "as long as there is a large amount of water accumulating, it will affect the able." Therefore, those who are able to enter the water must carry a swimming ring or other device that can float, and be careful not to soak for too long when bathing or soaking in hot springs to avoid drowning. In addition, the dense fog after the evaporation of seawater will still have an impact on those who are able.

"There are three types of Devil Fruits, Superhuman, Natural, and Animal."

Urrutia was so sleepy that she fell asleep.

There are probably two classifications of the superhuman system, one is physical changes, and the other is superpowers.

The animal system is divided into three types, ordinary species, ancient species, and phantom beast species, and there are three forms respectively, beast-shaped, human-shaped, and human-beast-shaped.

The natural system can turn the body into fluid, which belongs to the power of nature.

"Oh? It sounds like magic, it's good, so let's buy Devil Fruits everywhere, adults want to reach the peak of the Demon Dao, maybe magic alone is not enough, it is better to use Devil Fruits, so that you should be able to reach the peak of the Demon Dao faster. ”

Urrutia eventually came to such a conclusion.