Chu Feiyue left an eternal magic mark on the entrance to the underground world to prevent him from finding his way back. Then, he flew in the direction of the lights.

Chu Feiyue originally thought that she needed to enter Alflan first, and then do some tasks that could prove herself, and finally gain the trust of the people in the city. But the reality is often unexpected, such as this time, Chu Feiyue was very surprised to find that the orange-red points of light that he thought were the lights of the city were flickering out frequently. When he got a little closer, he could clearly see that all the firelight was coming from the towering walls.

As Chu Feiyue approached the underground city, more and more monsters began to appear on the criss-crossing water system and wet beach on the ground. The types of these monsters are very complicated, at least Chu Feiyue can't find what they have in common. The physical characteristics of these monsters have many similarities with some of the creatures on the ground, but they are not identical. It can be seen that in order to adapt to the special natural environment of the underground world, they have chosen a completely different evolutionary path from their distant relatives on the ground.

The dome and ground of the underworld can still see things because of the glowing moss, but this light source is so weak that Chu Feiyue's concealment in mid-air is as high as five stars.

Perhaps because the dome of the underworld is very low, these monsters have not evolved eyes that can look into the sky at all, which leads to the fact that even if Chu Feiyue is floating on top of their heads less than ten meters away, they all turn a blind eye to Chu Feiyue... Of course, this may have something to do with the fact that Chu Feiyue didn't have anything to shine on her body at all. Compared to the city wall that constantly erupted with orange-red firelight, Chu Feiyue was really too inconspicuous.

Chu Feiyue didn't have much interest in these little minions, he just glanced at them casually, and after making sure that there were no humanoid creatures or humanoid creatures among these monsters, he continued to fly towards the same goal as the monsters.

As Chu Feiyue gradually approached the city wall, the monsters gathered below became more and more numerous. In addition, the colors of the creatures of the underworld are very monotonous, all of them are black, which is also the best protective color of this place, but from the sky, these dense black and constantly surging creatures are enough to break any dense phobia.

Fortunately, Chu Feiyue does not have this kind of mental illness, to be honest, once the tiny electronic components installed on the circuit board that he often fiddles with are scaled, they are much more shocking than the scene in front of him.

Chu Feiyue flew over the head of this large monster unharmed and came to the city wall of Alphran.

Approaching the city wall, Chu Feiyue also had a general idea of the scale of the city. If this is a huge military city, then Chu Feiyue agrees, but if this is the capital of a country, then it is a little too small.

Chu Feiyue felt that the scale of this city was not even comparable to a small county town in the real world, although the city wall was built very high, it was true, how many people could live in such a small city?

This question will be left for observation later, and now Chu Feiyue has become interested in those orange-red fires that appeared on the city wall.

At the moment when these firelights appeared, Chu Feiyue didn't feel the fluctuation of magic. With the brightness provided by the moment those firelights appeared, Chu Feiyue also saw the body that produced these firelights.

It was some red prismatic crystals that could move around the city wall, each the size of Chu Feiyue's fist. What Chu Feiyue thought of as the fire was actually just the light radiation that accompanies these crystals when they release their own internal energy. And every time these crystals flickered, the monster under the city walls would immediately let out a scream, and a very small hole appeared in its body.

These crystals are very accurate in their shots, they are aimed at the vital points of those monsters, the head and heart are the first targets, and the fragile joints are often taken care of. The attack of the lens was very short-lived, even so short that even with Chu Feiyue's vision, he could not catch them on the retina. If this is a beam attack, then their effective illumination time may not even be a thousandth of a second, which can already be classified as a medium frequency laser.

But Chu Feiyue felt that if it was just a simple focused laser, it should not be able to achieve such a crisp penetrating effect. And immediately after, Chu Feiyue suddenly slapped her head.

No wonder he felt this attack familiar, it was so similar to the optical particle converter he invented! If the energy is converted into an impactful particle and emitted, as long as the energy is high enough, even if the emission time is only one millionth of a second, this effect can be achieved.

This made Chu Feiyue's interest in this city immediately increase, there was no laser attack with magic fluctuations, crystal levitation without magic fluctuations, and city walls without magic fluctuations...... In this magical world, there would be a city that might be shining with the light of science and technology, how could this not surprise Chu Feiyue!

Under the steady and efficient killing of those wandering red crystals, the monster's casualties became more and more serious. At this time, Chu Feiyue discovered another special feature of the underground world - although the monsters here will not be automatically refreshed (although the monsters that are not killed by the player will not be refreshed by the system), but the ground here is constantly devouring the corpses of monsters that have lost their lives. This effectively prevents the accumulation of a large number of monster corpses, otherwise with the number of monsters besieging the city at this time, they can sooner or later build a "corpse slope" that climbs the city wall by piling up corpses, so as to jump on the city wall.

However, due to the fact that the ground in the underworld can devour corpses, the possibility of the monsters climbing the city wall at the last trace is also ruled out. If nothing happens, no matter how many monsters come outside, they won't be able to threaten the safety of this city of technology - after all, its walls are so long, there are only so many monsters that can get close to the walls at the same time, and the other monsters can only squeeze behind.

This made Chu Feiyue a little speechless, he thought that he could become a hero who saved the city, but it turned out that people could completely solve it by themselves. If you lose this opportunity to perform, it will be much more difficult to trust the people in the city you want to go to later, right?

However, the strength of the monsters below is indeed too low, all of them are only at the level of the bronze elite or the silver elite, and they are completely at the level of miscellaneous soldiers, and Chu Feiyue doesn't want to make a move on these weak forces...

And the number of monsters here is inevitably too much, with Chu Feiyue's strength, although it is easy to clear an area, it will be very tiring to kill them all. This kind of mechanical killing, leaving it to those red crystals is the most suitable choice.

It would be nice if the boss came and let me slaughter it... Chu Feiyue floated in the sky above the city wall, speechless and looking at the sky.

Maybe it was Chu Feiyue's voice that was echoed by the world, or maybe it was because the mastermind behind this monster siege found that there was no doubt about this kind of attack. In short, in the distant darkness, suddenly an amber vertical pupil giant eye suddenly opened, and locked on the section of the city wall that happened to be where Chu Feiyue was.

The malice from afar made Chu Feiyue subconsciously turn his gaze in that direction, and in the next second, a gray pillar of light as thick as a bucket flew towards his face.

"I'm going to be in the Olympics... Why do you still say what to say! ”

Chu Feiyue scolded secretly, immediately adjusted her position, stopped in front of the pillar of light, and then Zhong Er stretched out his palm to the pillar of light full of anger.

The moment the pillar of light touched Chu Feiyue's palm, there was a brief pause. Immediately afterward, a pillar of light of the same color, but several times thicker than it had just been, reversed the path of the pillar of light and smashed towards its releaser.

Using the "Thorn Love" of the Phantom Pain Thorn Bracelet and the "Refractive Touch" of the Refractive Flower Bud Glove in the Dream Gate, Chu Feiyue reflected back the attack that was five times as large as just now.

However, it had little effect...

When the attack that was five times as large as the previous one was reflected back, the guy who had been hiding his figure didn't even bother to dodge, and a dense pale green magic shell directly emerged from his body, easily carrying the attack.

But with that layer of green fluorescence, Chu Feiyue also saw the true face of the attacker just now.

It turned out to be a giant statue hanging in mid-air!?

However, the pillar of light was gray after all, and the light it could provide was limited, and the distance was more than four hundred and eighty meters beyond Chu Feiyue's reach, so Chu Feiyue couldn't see whether the statue was really hanging in the air or if it was supported by some support. And as the huge eyes that could make the forehead of the huge statue opened again, the pillar of light that had been reflected back disappeared very abruptly as if it had been denied existence.

Such a strange situation made Chu Feiyue feel a little tricky, and at the same time as seeing the colossus, Chu Feiyue had a very bad feeling. The sensation came from the elements that made up his body, as if the elements themselves were hostile to the guy.

The monsters' attacks continued, but only the giant statue remained in Chu Feiyue's eyes. And just as Chu Feiyue was about to have a tense and exciting battle with the colossus opposite, a voice that made people subconsciously think that the person who spoke must be very cute came from behind him.

"Hey, you don't want to die, you actually look at the colossus of the spider mother!"

"Huh?" Chu Feiyue turned her head and glanced at the person behind her, and immediately showed a very, very surprised expression on her face.

"Riko, how did you end up here!!"

The girl who appeared behind Chu Feiyue had a face that was almost exactly the same as Fengli Robin.

……

Well, I wish me a happy birthday, even though my birthday was yesterday _(:з"∠)_