As we all know, white beard is capable of shaking fruits. Shaking fruits, known as the strongest Superman fruits, can cause vibration at will, even tsunami, and cause natural disasters such as earthquakes. It can be said that white beard has destructive power.

White beard at his peak is said to have the terror power that can rival three Navy generals.

However, sometimes the ability of the devil's fruit does not bring all benefits to the owner, just like the rubber fruit of Luffy. When entering the second and third gear, it uses the same principle as the pump generated by the characteristics of rubber to accelerate its own blood flow, so as to obtain faster speed and stronger power. However, the result is a huge load on the heart, The more you use it, the more harmful it is to your body.

There is also a problem with the quaking fruit. White beard has become a quaking man because he has eaten the quaking fruit. When he uses his ability, his body will also vibrate, which has an impact on his own bones, muscles, blood and even internal organs. Perhaps this kind of impact is not obvious when white beard was young, But as he grew older, the effect began to show.

In short, the deterioration of white beard's physical condition is not only due to aging, but also the common result of many reasons.

"We've got Ian to launch an attack on daddy!" Marco said: "Daddy looks 12 years younger, but the problem is that his physical condition can't go back. The most troublesome thing is that the ability to go back is only temporary. Once Ian is unconscious or falls into the sea, her ability will be invalid, and daddy will come back at that time."

Hearing this, Ian nodded thoughtfully. If you really hope to keep white beard as young as he was, maybe the people of the white beard Pirate Group will have to protect Ian in turn. They can't let her fall into the sea, and they can't make her dizzy. It's troublesome to see

Ian has seen and known a lot about the fruit power of demons. He has found an interesting phenomenon that it seems that the fruit power of some superhuman systems will fail when they encounter sea water!

The simplest example is probably moonlight Moria. The zombie army made by him with shadow ability, once it comes into contact with salt and sea water, those shadows will fly back to the original owner. Ian is also a superman. I don't know if her ability also has this disadvantage. If so, it's meaningless.

Sure enough, it's all deceiving to keep youth forever... Although retrogressive fruit sounds very buggy, it's not so powerful after careful study. The ability of this fruit is still very useful in combat, but it's useless to expect to use it to make baihuzi or zefa recover their peak combat power.

Ian wants to return the favor to white beard, but now it seems that the road of ai'en's retrogression is impassable, so he can only use the card of Inoue Zhiji. But the problem is, Ian doesn't know how useful it is to white beard.

Generally speaking, Ian used to weave Jika cards on the well to treat his injuries, but the injuries of white beard were minor problems, which were some old injuries. His main problem was that he was getting old. In Ian's opinion, even if Vientiane refused, I'm afraid he couldn't even refuse to come back at a person's age?

Only after a real test can we understand the specific effect

After four more rounds of mahjong, they stopped. After putting mahjong away, Ian and ACE walked to an open position with their fists clenched, while Tenghu and Marco watched from a distance.

These days, although he has been on vacation, Ian's exercise has never been relaxed at all. When he gets up every morning, he completes his exercise under the gravity of Tenghu. In his spare time, he sits down to play mahjong with Tenghu.

In addition, Ian now has another task, that is to practice ace!

Don't get me wrong. In terms of physical skills, Ian and ace are only half weight, and he can't teach ace either. The only thing Ian can teach ace is to develop the ability of burning fruits.

Ian has always felt that ACE's ability development seems to have gone in the wrong direction.

Compared with the time when he first got to burn the fruit, ace has developed a lot of moves to use the fire. His fire has become more and more huge and powerful. A fire fist can even directly destroy a ship.

However, it's only a superficial use. Ian thinks that ACE doesn't grasp the essence of burning fruit.

What is the essence of burning fruit? Temperature!

Yi'an himself plays with fire. He has played with the flame of the evil king Yan's sword, the flame of the black dragon wave, and even the cangyan of the eight gods. It can be said that he still has his own intuitive feelings about the flame.

In Ian's opinion, the development of flame ability doesn't care about the shape or the volume. The key lies in the temperature. Ace has always been confused.

So these days, Ian has been trying to correct ace's idea.

"Come on, let me see how much higher the temperature is now!" Ian gave ace a hook. Ace nodded and didn't speak. His body turned into a flaming flame, and he became a flaming man, as if his body had become larger. However, Ian frowned at the change of ace. He found that the flame temperature of ace has indeed increased. However, this increase is brought about by increasing the burning area. If that makes sense in terms of conventional physics, it means that ACE actually burns more fiercely by being exposed to more oxygen. The best way to improve the flame temperature is to start with the fuel. Different fuels will bring different temperatures when burning. But the problem is that ACE is a flame now. He doesn't have any fuel of his own. When he keeps elemental, it's just his own physical strength, From this point, we can see the unscientific fruit of the devil. Fortunately, from the beginning, Ian did not expect to solve the unscientific problem of demon fruit in a scientific way. He knew that even without the help of external forces, he could control the temperature. Because Ian has seen such a man, kuzan the Green Pheasant! Green pheasant's freezing ability, in the final analysis, is to reduce the temperature. He was originally a demon fruit, but he can freeze the sea instead of being disabled by the sea. That's why. Ice and fire are a pair of antonyms. Lowering the temperature makes the object freeze, while increasing the temperature makes the object burn. And ACE now is to learn from the Green Pheasant, from controlling the flame to controlling the temperature. In Ian's chattering words, ace has been trying to do what he said, but it's really difficult. Imagination is one thing, and specific operation is another. Ace has been standing in the same place for a long time, maintaining the shape of a super sair, and rising in flames, but the actual effect is very little. Because Ian himself is not a demon fruit power, he can't understand the feelings of ACE after elementalization. He can only guide ace through words. After a while, ACE gasped and said, "no, Ian, let me see your black flame again!" Ian nodded and untied the bandage on his right hand. Now every time he was free, he would keep a black dragon wave on his right hand, so naturally he could let ace watch it at any time. After untiing the bandage of the mantra, the huge heat of heilongbo immediately radiates out. The high temperature of heilongbo makes it impossible for ordinary people to get close to watch, but ace is an exception. He can even touch the flame of Ian heilongbo with his own hands. Not only him, but also Malko, the undead bird. Although he is an animal species, Malko is also a man with his own flame. Of course, the flame after his transformation doesn't seem to be a real flame, but it doesn't prevent him from contacting Ian's heilongbo“ Ha ha, every time I see the black fire dragon, I feel very surprised! Although the flame was blue when I changed my body... "Marco held his arm to the rattan tiger beside him and said," but is there such a black flame in the world? No matter how hard ace tries, I'm afraid he can't make his own flame turn black, can he“ Maybe! " Rattan Tiger stood in the same place clutching his sword and said with a smile: "but how can we know if we don't try something in the world..." the black old demon said that there was another chapte