In the subsequent hunting in the windless zone, there were no more surprises.

Ron first took down a medium-sized sea king, and then spent a lot of effort to enter the body of a large sea king, which can be completed from the body.

In the end, Ron wanted to try to attack the giant sea kings, but before he could get into his nostrils and mouth, he was forced to use the elven ball defense by the monstrous currents spewed out by the other party, and he couldn't get into it after several attempts.

As for the other places that can be drilled...... He gave up anyway.

Hunted down the medium and large sea kings, achieved the two achievements of 'Pro Hunter' and 'Hunting Expert', and got 3 achievement points, which has already satisfied Ron.

A total of 5 achievement points were awarded on this trip, and the total achievement points rose to 90, which was only ten points away from 100 points, and it was almost the same to achieve four or five higher-level achievements.

There is no rush for the time being, and other more suitable ones are 'Voyager 4' and 'Voyager 5', and the conditions for achieving them are to set foot on forty different islands and fifty different islands respectively.

These are time-consuming, but easy to achieve.

There are also 'Just Itchy Hands' and 'Ultimate Saboteur', which can be achieved by destroying ten medium-sized ships and at least one large one, and thirty medium-sized ships with at least three large ones.

It's actually very simple to say that this achievement is achieved, and it's almost impossible to find a port to destroy it, but it seems a little too immoral to think about it...... Anyway, the task of the navy is to hunt down pirates, and it is appropriate to destroy pirate ships.

Ron had never paid attention to the task of hunting down pirates before, but after returning to the branch this time, he dug through the information about the pirates in the sea, intending to put the two types of achievements of the sabotage system and the navigation system together, although it was more time-consuming, but it was easier to achieve.

And on the way to sail, you can also continue to explore magic.

The magic of the wind system has been handed over to Nami to study, and the types of second-order magic that Nami now masters are more than Ron's, and some second-order magic is still known to Ron from her.

As for the other fire-based and ice-based magic, Nami didn't learn it, not because she wasn't interested in other types of magic, but because the wind and guardian systems had already involved a lot of her energy.

Ron didn't care about Nami's research at first, although Nami's exploration of some second-order wind magic can also play some daily roles, but it doesn't mean much to him, but what Ron didn't expect was that Nami found something that surprised him one day two months later.

Nami has discovered the basic principle of overlapping magic circles!

Ron had been thinking that the magic of the energy source could definitely be combined with other magic, but he didn't have a clue how to combine it, and he didn't deliberately study it, because he didn't want magic equipment to appear for the time being.

On Kanami's side, because she has only mastered wind magic and guardian magic, she has only two research directions, and she explores a completely different direction from Ron.

She discovered that runes can overlap!

Overlapping and combining are completely different, combining is the runes intertwined into a whole on a plane, and overlapping is like multiple magic arrays, forming a three-dimensional overlapping form!

The difference made by this discovery is ...... The Magic Tower is fully formed.

Originally, the runes engraved into the wind and ice systems other than the eternal system could not exist forever, and they would disappear after being released.

But when the runes of the elemental system overlap with the eternal rune of the energy source, it is affected by the power of the eternal system, and it forms a whole with the energy source!

Hurricane Towers.

Frost Tower.

Flame Tower.

Magical towers of all kinds appeared, omitting the step of condensing runes, and with just a wave of the wand, the magic tower can be activated and released in an instant!

Perona, who doesn't even bother to learn any magic, can freely manipulate this kind of magic tower and release the corresponding magic after being given a magic mark by Ron!

If there were enough sea towers and enough magic towers built on a certain island, Ron could imagine Doflamingo flying into the sky and then being blasted into fireworks by a dozen or even dozens of third-order magic in an instant.

It's a pity that Ron only managed to get six rough stones from the Navy.

It's just enough to make three elemental towers.

Ron made two, one on the deck and one on the stern of the ship, and the remaining two primordial stones were made into a magic tower in its normal form, made of two energy sources overlapping.

This kind of magic tower with two overlapping energy sources can store less energy than the two separated cores, but the energy accumulation time is shorter, and it is much easier to control than controlling two separate magic tower cores, even Nami can barely control it.

These magic towers are actually magical equipment in a sense.

Those large-caliber heavy cannons in the Navy Headquarters are certainly very powerful, but where can they compare to the magic tower that can release third-order magic?!

If one hundred and eighty of these magic towers were arranged in the Navy Headquarters, the outbreak of war would be a salvo, even if it was the Four Emperor Pirates, it would be enough for them to drink a pot!

In fact.

After the magic tower was built and used by Ron to test its power, the information was learned by the navy's top brass, and Sengoku personally called Ron to ask about it.

After receiving the answer from Ron, "This is made with special abilities, and only he can control this weapon", Sengoku hung up the phone bug with great regret.

Sengoku did not suspect it.

Like Moonlight Moria, he used the ability of the Shadow Fruit to create a zombie legion, and the zombie legion is obviously an ability that only he can command and mobilize.

There are no longer a few other people who use the fruit ability to create special weapons, and the superhuman weapon fruit can be transformed into any weapon by itself, but because it cannot be mass-produced and used singlely, it cannot have any impact on the forces on the sea.

Only by using scientific means to create all kinds of weapons and weapons that can be mass-produced, like Vegapunk, is enough to make a huge difference to the navy.

The top government officials also got the news, but their attitude was similar to that of Sengoku.

Each Devil Fruit ability has its own unique ability, unless it can create a powerful weapon that can be used and operated by ordinary people, and can be mass-produced, then it will have great value, and the pure development ability is just a means for individuals to hold, and there is no need to pay too much attention to it.

And so, months passed.

Time came to the twenty years of the era of the sea pirates, and this year was also the time for Zoro to go to sea, because the road idiot couldn't go back to the village, so he became a pirate hunter.

Ron completed the series with two achievements, 'Voyager 4' and 'Voyager 5', and also achieved the 'Just Itchy Hands' and 'Ultimate Destruction' of the sabotage system.

Four achievements, for a total of 7 achievement points.

Only 3 points away from 100 achievement points!