The Olympian ruins were located less than an hour's drive by horse-drawn carriage southeast of the capital.

　We passed through a forest and went deep into a hilly valley.



　Against a precipitous cliff, the rotting ruins appeared. Large pillars, some of which had fallen down, were scattered here and there. They looked like something from Greece or something.



　Near the cliff, there was a palace-like building, which looked neat at a glance.

　There is a labyrinth-like dungeon under the building.



　They said they would pick us up and take us to the ruins, but once we were there, we had no more use for them. I politely declined the offer to be picked up in the evening.



　I sent the carriage off and immediately wanted to set up a door to nowhere.



"Why are you here?"



"What?"



　What's the matter with you now? The one with the "Irisphilia" look on her face is Irisphilia. Yes, Iris. In addition to his usual black pants look, he is wearing strong-looking cage hands on both hands. She's really going to hit him, I know it.



　No need to reminisce here.

　I heard from somewhere that Iris heard that I was going to take an exam to explore the ruins, so she went directly to the dean and decided to participate in the exam.

　When I went to meet Charlotte with the dean, she unilaterally informed me <>, and before I could reply with a complaint, Char was so happy that she jumped up and down.



"Am I still in the way?"



　Yes, it's very disturbing.



"No, it's not. I'm glad you're here, Iris.



　But for some reason, Char looks very happy. And by the way, she's in full Puella Magi costume.

　We need him to play an active role, but it is very difficult to do so with Iris by our side.



"Let's just make a way to get around..."



　I signaled with my eyes, and Char wielded what looked like a magic stick.

　Not that Charu used magic, but I secretly created a door in the stone pillar with a warding spell.



"Now, Charlotte didn't look like she used magic. ......"



"Really?　I felt a beautiful rush of magical power that was stunning."



"Is that so, ......?"



　I'm not sure I can keep faking this.



　Well, he's not going to slow us down from a tactical standpoint. He's not as good as Frey and the others, but for some reason, his magic level has recently jumped up to [23]. He has surpassed Rias and leaped to the top class in the academy.



　It was such a big deal that it turned the whole school upside down... but that's about it.

　I guess the dean thinks it's a good idea for Iris to go with him to explore the ruins in order to gauge his abilities.



　Actually, I'm a little interested in it myself.

　I have a feeling that I can use him as a test subject to experiment with various things.



<>



　A voice comes out of nowhere. A screen appeared out of thin air, showing Loli-ko Chibi Megane-san.



"Professor Tiahrietta, please give me your advice.



<<>



　In the middle of Professor Tia's words, he proudly puffed out his chest.



　



　The ground shook. Was it an earthquake?　But it was more like something huge was moving deep underground.



　The ground rises.

　Immediately after that, the place exploded. Dirt and floor stones scatter as if there was an explosion underground,



　--CUSHER!



　Something big just came out, didn't it?

　It looks like a caterpillar lengthened in length, with a circular mouth like a lamprey eel at the tip. It has numerous wriggling teeth, and when drool falls to the ground, it melts into a sizzling mess.



　The part of the body that rises above the ground alone is more than 20 meters long. It doesn't feel good to look down on it from above.



"My brother!　It's a giant demon!"



Yeah, it's exactly what it looks like.



　I'm not sure what kind. I've never seen anything like it out here in the middle of nowhere.



　It's big and it's creepy.

　It looks like it's really strong.



I don't need Char to tell me that.



　I dare my sister to take the lead and step forward, even though I need her to play a big role in this.



　The main part of the search for the ruins is in the building, or more specifically, in the depths of the underground labyrinth.

　It is said that the labyrinth is crawling with very strong demons that even the princesses of Flash Princess and the others have a hard time with.



　But the demons that appear in the above-ground part of the labyrinth are quite common.

　They may look like that and be that big, but they must be as strong as goblins.



　I have to make Charles active, but I also have to make a good showing in the battle.

　I won't get much credit for defeating the demons that appear on the ground.



　I draw my magic gun from its holster.






　That kind of monster must have a weakness in a distinctive area. That's why I aimed at its mouth, which is covered in a myriad of teeth.



　The output should be enough to take down a goblin. I've never fought a goblin.



　But they're big.

　If it's weak, even a light force should penetrate through it, but there's no way I can kill it by sticking a needle in its nose, so I might as well blow its head off.



　I pulled the trigger.

　At the same time, I create a two-meter spherical shape and send it into the giant monster's mouth, making it look as if I'm firing an energy projectile at it.

　Since it would be too tricky to go straight forward, I made some magic circles in the sky and made it look as if it hit the target by wandering through the magic circles.



　Oh, I look so cool!



　With a thud, the tip of the demon's head and its big mouth are blown off.

　The long body collapses with a thud, spewing purple bodily fluids. It's really gross. It would have been better if the whole body had been obliterated.



"I guess it wasn't what it looked like. Okay, let's move on... hmm?



　When I turned around, Iris and Char were both open-mouthed and in a state of shock. What happened?



"Yes, that was a Huge Rock Eater. And a very large one at that. And it was a single blow. ......"



　Is that a famous demon?



<<>.



"What, how did that thing get on the ground?"



<<< What do you think?　Maybe you just happened to get lost, but ...... whatever it was, I can no longer measure your ability to defeat it with a single blow.



　Hmm?　That means--.



"That's my brother!　It's amazing!"



　Yeah, I guess I've been screwed over from the start--.