When the D-particle vibration ball hits the iron golem, a spatial vibration wave is radiated and skewers the iron golem's body. The iron golem hit by the ball is, of course, pierced, but the body of the iron golem behind it is also pierced.

　The spatial vibration wave extends and shakes and destroys all of the material existing in the occupied space, shaking the entire space. Although its destructive power is heinous, the shortcoming of "Crash Ball" is that its destructive range is narrow.

　The iron golem's vital point is the metal ball buried in its chest. It could not be completely defeated without destroying it, so spatial vibration waves had to penetrate the metal sphere.

　However, an iron golem with a hole punched through its body will not be able to circulate its magical power properly and its movement will slow down. If this happens, it is easy to destroy the metal ball by aiming at the center of its chest.

　The D-particle vibration balls released by Alisa and her team would puncture the chests of the iron golems, slowing their movement. Occasionally, an iron golem would be hit by a metal ball and disappear, but only a few of them did.

　A group of iron golems run toward Alisa and the others. The ground shook as the mass of metal began to run all at once. Alisa and the others felt it, and their faces tensed up.

　Yukari launches a "Death Shot" aiming at the leading iron golem. The armor-piercing magic bullet pierces the iron golem's chest and makes a large hole. The metal ball is also destroyed, and the iron golem disappears.

　Alisa and the others, who continued to attack in succession, looked mentally exhausted. In fact, the magic activation intervals were getting longer.

Keep attacking!"

　Alisa shouts. In response, the three of them activate their magic. When more than a dozen iron golems disappear, Amane shouts that the magic level has been raised. After that, Alisa, Chika, and Yukari, in that order, raise their magic level. However, Yukari's magic level is the magic level of attack magic.

　The iron golem is still closing in. Alisa and her team continued to attack while retreating little by little, and the uninjured iron golem was gone. Alisa and her team put the finishing touches on the slow-moving iron golem.

Oh, the magic level is up again."

　Amane raises her voice. Alisa instructed Amane to stop attacking and support the others. And Alisa also reaches magic level 14.

I'm now '14' too, so I'm going to support you. Yukari, try to defeat him with life magic, not attack magic."

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　Chika slams the Seventh High Blade into the chest of an iron golem approaching like a zombie. The D-particle blade bites into the metal ball, its weak point, and destroys it.

Oh, I'm at magic level 14 now."

　Alisa nods and looks at Yukari.

Yukari is the only one left. As long as the magic lasts, you can finish her off."

　Yukari nodded and activated her Seventh Crush Lance, shooting it into the center of the iron golem's chest. The remaining four iron golems, two of which try to attack Yukari at the same time.

　Arisa slams Seventh Ogre Push on an Iron Golem that tries to attack Yukari and rolls it away. In the meantime, Yukari puts the finishing blow on the other Iron Golem.

　Arisa, Amane, and Chika provided as much support as possible to facilitate Yukari's tome. And when she toked one of the two remaining iron golems, the magic level of Yukari's life magic was raised.

I'm up. Thank you all."

　Alisa heard this and tore into the last one. Alisa and the others sat on the ground with a thud.

We've achieved our goal.

　The three nodded in satisfaction at Alisa's words.

I'm tired. Yes, let's have Hank and the others pick up the magic stone."

　Arisa and the others commanded the shadow puppets to come out of the shadows and bring the magic stones. The shadow puppets collected and brought the black magic stones , despite falling down from time to time.

　When Mohawk brought the last magic stone, Alisa smiled happily and patted Mohawk's head. There were 34 magic stones in all.

　Alisa and the others, who finally have the energy to stand up, get up and start looking for the drops.

When you say 'iron golem drop,' don't you mean a vermillion steel thin sword or a ring of magical equipment?"

　Yukari says, recalling what Grim told her.

　Alisa denied it.

That was a boss drop, so I don't think that helps."

Then what is it?"

　Unable to answer that question, Arisa and the others searched around and found five dropped items from the Iron Golem. They are called "golem cores," which are metal balls on the chest of the iron golem, reduced to about three centimeters in diameter.

　Although it is not possible to make a golem from that golem core, it can be redeemed for a high price as it is a component of various magical equipment. It turned out to be a great source of income, but the faces of Alisa and her friends were austere because it was not the magical equipment they had hoped for.

Don't you think there might be a treasure chest in that cave?"

　Yukari said, turning her attention to the cave.

　Alisa and the others discussed and decided to check the cave. Before doing so, however, they check the remaining amount of magic power with a magic counter.

It's like 30 percent left. I'm a little nervous.

　Yukari raises her voice. Chika hears it,

If we see danger, we need to be ready to flee and investigate."

　The four of them returned the shadow puppets to the shadows and entered the cave. It was dim inside, so they took out their flashlights and turned them on.

　The cave is seven meters wide and five meters high, and appears to be sturdy. When they proceeded to the back, the cave was divided into two parts, and Alisa and the others chose the right side to proceed. At the dead end, they found a treasure chest. Everyone was thrilled to find five rings inside, and Amane and the others jumped for joy.

Alisa, find out what ring this is.

　When Amane asked, Arisa took the rings and activated "Item Analyze". The five rings were "efficiency-doubling rings.

　Amane laughs happily when she hears the results from Arisa.

This is the ring that Dr. Grimm uses to cut magic consumption in half, right?

　The three nod yes. Their faces are happy. It seems that all of them had been wanting a "efficiency-doubling ring" for some time.

Now, if we distribute them one at a time, we'll still have one left over, so what do we do?"

　Alisa looks around at everyone and says.

It's a very rare piece of magic equipment, so I think it's a good idea to keep it as a backup."

　Chika expressed her opinion, and all agreed.

　We headed back down the cave to the junction, this time to the left. But along the way, it became hot and we began to feel unbearable heat ahead of us.

'Hey, is there some kind of blast furnace up front?'

　Alisa chuckles at Amane's words. It was an iron golem nest, so she would have thought such a thing, but Alisa guessed that it was not a blast furnace but some kind of lava.

　We turned back as it seemed we could not get any closer. Once outside the cave, the four of us decided to continue back to the surface.