Hajime came to doubt the condition for conquering this dungeon, and Shia raised her voice while pointing at the middle island.
"Hajime-san! Look at that! The wall is shining!"
"What?"
When he looked at the middle island, it was indeed as Shia said. A part of the rockwall shot light as big as a fist. He didn't notice it up until now, but the orange-colored light was coming from some kind of crystal buried under the wall of rock.
Hajime used "Farsight" to confirm it, but although it was difficult to confirm due to camouflage, he understood a large amount of similar crystals were buried on the rockwall of the middle island in orderly fashion. The middle island was cylindrical, so considering the interval between crystals and the island's surface area, around 100 crystals were buried. And the crystals that currently shooting out light were eight... the same number of Magma Serpents Tio annihilated before.
"I see... so we need to defeat a hundred of these Magma Serpents to clear it, huh."
"... In this heat, fighting a hundred of them... it matched the dungeon's concept."
Needless to say, having suffered from the heat and surprise attacks, the challengers were driven into the situation where they needed to concentrate the most in the very end; nastiness suitable for a Great Dungeon.
Indeed, even Hajime's party were quite exhausted, mentally. However, their expressions didn't show any exhaustion, they were wearing fearless smile because they had found out the method to conquer the dungeon.
They regained their spirit when they came to understand what they must do, and they once again attacked the Magma Serpents. Along with the downpouring masses of magma, the Magma Serpents made irregular movements to catch and burn their prey.
Hajime's party spread out again and respectively began to counterattack.
With dragon wings grown out of her back, Tio floated using the wind she regenerated and used tornado along with vacuum blades to attack, bombarding the serpent. It was a wind element, mid-ranked offensive magic, "Imperial Cannon."
"This is the ninth! Presently, this one is leading, Master! If this one defeated the most of them then this one wants a lot of rewards (punishments)! Of course, only two of us at night!"
Tio shouted while slashing the ninth Magma Serpents to pieces. Hajime tried to refuse with an amazed expression, but Shia interrupted him.
"Wha-! It's unfair if it's only Tio-san! I am also entering this challenge! Hajime-san, one night with me if I win!"
After shouting, Shia jumped above a Magma Serpent and swung down Doryukken onto its head from upper-stance. At the moment of impact, ripple of light blue colored magic power spread, next a violent impact was generated. The serpent immediately exploded from the head part until the ocean of magma. Sparkling minerals fluttered from the remains of Magma Serpent. It was the magic stone crushed by the impact from "Magic Shockwave".
Masses of magma were approaching Shia, who was still mid-air from killing one of Magma Serpent, from behind. Shia used the recoil from Doryukken's outburst and evaded. However, as if it was aiming for this, a Magma Serpents with its mouth opened come attacking to where Shia would fall.
However, Shia wasn't that worried about it, she threw a disk taken out from the holster on her back into the air. It was a disk with diameter of 30 centimeters, and it didn't fall but floated slightly lower place than Shia. Shia put her foot on it weightlessly and once again danced in the air.
The disk used the same principle as Cross Bit to float in the air, becoming foothold, and moving according Shia's will by using induction stone. This, coupled with Shia's weight adjustment, made it possible to do a combat like "dancing in the air".
With its calculation coming off, the Magma Snake passed through the empty space under Shia. Transforming Doryukken, Shia aimed the muzzle towards the serpent and pulled the trigger. What shot out wasn't the usual bullet but a slug bullet.
However, it wasn't a normal slug bullet. It was a bullet created from special ore that Hajime endowed with characteristic of "Magic Shockwave," thus it would generate shock wave from the supplied magic power at the same time it hit the target. By force alone, it far surpassed the grenade bullet.
Along with the roar of Doryukken, the fired slug bullet didn't miss its target while hitting the Magma Serpent from back of its head, thus from its head to its body, the Magma Serpent was swallowed by the regenerated explosion. That impact once again crushed the magic stone which now fluttered as it sparkled in the air.
"Oi, girls. You, don't just selfishly..."
"... Then, I want one day of date for the two of us."
Hajime opened his mouth to retort on Tio and Shia's one-sided competition, but he was interrupted by Yue who also wanted to participate in the competition of annihilation. Putting aside the things at night, the increasing number of companions decreased their time alone, so Yue seemed to want a one full day of just the two.
Exuding aura of having fun, however, the magic Yue activated was a brutal one. It was her latest favorite, "Thunder Dragon."
However, due to her being more and more skillful on using it, the "Thunder Dragon" that appeared was numbered seven. At almost the same time, they moved toward their respective targets. Thundering roars rang out. The Magma Serpents who were trying to devour Yue was conversely devoured one after another by the group of Thunder Dragons without even leaving a mass of magma behind, so their magic stone inside their body had also broken.
Seeing that spectacle, Shia said, "As I thought, the most powerful enemy is Yue-san~!" Tio said, "Yue is bugged! Twas absolutely odd!" Both of them made hasty expressions while cursing. They pull out more severe attacks, adding the number of things they annihilated.
"... It's not like I care. But, they seem to having fun."
Shrugging his shoulders towards the three enthusiastic girls that made him as the prize of the competition, Hajime somewhat given up. Then, without turning around, he rapidly fired Schlag over his shoulder towards the incoming Magma Serpent behind him.
The bullets were fired evenly on the Magma Serpent's body and the impacts blown the serpent's body. At the same time, the impacts made the magic stone fluttered in the air. Repelling the masses of magma that flew from the previous half body, Hajime pinpoint shot through the falling magic stone right before it fell into the ocean of magma.
The bullet Hajime fired from Schlag was the similar exploding bullet like Shia's. However, because it would be problematic if the bullets were too big, their power didn't reach slug bullet's. Of course if he used Schlagen, then it would be possible to bring out that much of a destructive power. However, it was the first time the bullets were used, similar to an experiment, so he only used the two guns.
The normal sized bullet didn't have the power to blow away the Magma Serpent along with its magic stone, so Hajime now used around 2 shots to blown off the magma armor and sniped the exposed magic stone using Donner's pinpoint attack. Naturally, the Schlagen was capable of ignoring the magma armor and penetrate through the magic stone, but it had too much penetrative power added that it wasn't easy to locate the magic stone thus wasn't suitable for aiming at the magic stone.