Black Iron Magician

「It was a pretty good attack desuwa! But I won’t lose!」

「Ugh! What a sturdy fortress!」

「Gigi, attack, attack!」

Therese used her Unique Skill, 『Beautiful Voice of the Star』, to attract the attention of the monsters. Anyone who hears her voice becomes conscious of her that their gazes and thoughts unknowingly turn toward her. Especially, this Skill is easy to affect those who are overserious, those who have no resistance, and those who are easy to be swayed by others. In this case, the merman’s army had fallen right into Therese’s trap and rushed to her.

「Ara, it’s time for the next water to come desuwa! Valent!」

Every time the merman rush in, the water flows into the area where Therese is holding her shield. As previously mentioned, this is the support of the magicians of the mermen who are in the rear, but Therese is even using this water.

It’s not visible from the mermen’s side, but there are plant roots firmly rooted behind her shield. As the water approaches Therese, the roots stretch to the surface and suck up the water. 『Valent』, an earth magic that can be acquired from a scroll at level 30, is the magic that created these roots. The water that is sucked up is converted into nutrients for the rooted soil, and it is farming magic that would normally be used in fields during the dormant period. However, in Therese’s case, she used it to increase the durability of her shield by applying it to her beloved staff, Coalesce. Currently, Coalesce has not been damaged by the Merman’s attacks at all, but even if it’s damaged, the roots of this Valent will repair even the shield.

However, it must be water that is used to grow normal plants. It is out of the question to give seawater to the roots of Valent, which is not a halophyte. Then, how can Therese successfully reinforce Coalesce even though she’s using the seawater? The answer to this question lies with Weerel, who is standing behind Therese.

「Aqua Bless….」

『Aqua Bless』 is an elementary magic that can be acquired at level 10 water magic. This magic turns the target’s water into clean drinking water, which is useful for survival. Because of its nature, it goes well with earth magic, and this case is no exception. However, the range of its effect is extraordinary. If she wanted to, she could make all the seawater along the coast available for Therese. But because of various reasons, it’s only the area around Therese.

「Replenishment is complete desuwa! Wee, please do!」

「Okay….」

When the roots have sucked up enough water, Therese gave a signal to Weerel. The roots can’t absorb all the water that covers the ground surface, so it’s necessary to push back the unnecessary amount.

「Aqua Waltz….」

When Weerel muttered the incantation, the waves that had been coming up by the merman’s army returned to the sea as if they were rewinding.

「Gigyaa!?」

「Gigi gigi!?」

Because of that, some of the mermen who were heading for Therese are pushed back, and the formation is further destroyed. Now there are only a limited number of people who could figure out where the commander and the subordinates are.

The magic that Weerel chanted earlier is a level 50 water magic 『Aqua Waltz』. It’s the same magic as the magic that the merman’s magicians were using, a magic that could manipulate the existing water in the surroundings. However, its range of effect and compelling force is impressive that if Weerel uses it, it will cause a big wave even on the calm beach.

「「「「………」」」」

And then, the heroes of Tazarnia who saw this scene were stunned. They are easily defending against the merman army, which had been giving the heroes a hard time until yesterday. Moreover, the boss, the one who gave them a hard time the most, shows no sign of appearing at all. It means that the boss can’t break through Haruna who ran over the sea before.

「This is the fifth time desuwa. Haruna-san has arrived there and they have been weakened by poison, so let’s switch from defense to the next stage!」

The first stage of the roles of Therese and Weerel was to stop the mermen so that the soldiers of Tazarnia would not be harmed, and to regain the territory of Tazarnia that was taken until yesterday.

Therese stood at the front and made the enemies focus on her. Then, Weerel pushed the flocking enemies back to the sea, and Therese advanced further when the water is gone. By repeating this many times, they regained the territory that had been covered with water until yesterday, stirred the seawater that’s mixed with poison, and accumulated poison damage to the enemies.

「G-Gigi…」

「I feel, sick….」

In fact, the mermen were weakened by the repeated waves of poison. Their field has been changed into the enemy’s field before they know it and their bodies are still being eroded. Now, the second stage they will do is――

「Yes, it’s about time…. Chinatsu-san’s plan is wonderful…. Now, Slug Drow….」

――Annihilation. Weerel’s newly created slug turns its face to the mermen who are being pushed back by the waves and are still trying to struggle. Due to how small Weerel is on the head of the slug, Udberg and his friends are at a loss for words.

「*Inhales*――」

The slug takes in a large amount of air and starts to swell.

「O-Oi oi, it won’t explode, right…?」

「H-Hero Udberg, that’s nonsense. As a hero, I think that a suicide attack such as self-destruction is not beautiful. … I think, I hope so.」

The heroes of Tazarnia are clearly frightened. Since they lived as a nomad and have no relation with magic, it seems that they see Weerel’s magic as something mysterious.

「Don’t worry! Everyone, it’s not going to self-destruct like you are worried about!」

「R-Right. I’m relieved….」

「Yes, it’s something else that will explode!」

「「「「Eh?」」」」

At the moment when the voices of the four overlap, soap bubbles are released continuously from the slug’s mouth.

「――Fu!」

The large soap bubbles are released over a wide area in front. The mermen, who are single-mindedly heading for Therese, stab the soap bubbles that blocked their way with their iron harpoons without doubting it.

「――!?」

A huge explosion occurred among the group of mermen. The impact calls another impact, and the soap bubbles are broken one after another. The mermen who got hit directly by the impact and the loud explosion sound were unable to resist and collapsed. The merman’s magicians who are in the back seem to be unable to concentrate on their chanting due to the loud explosion sound, so they are unable to provide any assistance.

「Thank you for your hard work…. I think we were able to annihilate most of them….」

「That’s right desuwa!」

The mermen are floating on the sea. By the way, the heroes of Tazarnia were groaning while holding their heads.

「W-Wait, there are still the different-colored mermen in the back who uses weird magic…」

「Don’t worry…. I’ve applied 『Walk』 magic on Chinatsu-san so she can walk on water just like Haruna-san…. I think she’s about to finish defeating them….」

「All that’s left is the boss desuwa! They can’t function as a unit anymore desuwa!」

「Seriously…. This is the hero of Adelheit…!」

As Udberg turned his eyes to the coast that has been regained from the enemies, a different-colored merman was washed ashore.