Me and Amelia finally set foot in the boss room on the 80th floor.

Boss, about twenty-four hours after we found the room, that is, after a day.

I took a day off, of course, for a reason.

One is the disadvantage of Amelia's 'magic generation', that once used, two days cannot be used.

Another thing a normal person can mention is that they consume a lot of magic, but Amelia is cleared because she has nearly infinite magic.

Of course, it would be nice to defeat the boss without having to use 'Magic Generation', but the boss room wants to be fully challenged.

The other is my training.

I wanted to seal my skills for as long as I could and train my sword.

"Amelia, are you ready?

"Yeah. You can always open it.

Amelia, who was silent and image-training, nodded with her eyes open as I listened while exercising prep.

I opened my hand and closed it, checking the motion.

"All right, let's go.

"Two of us, me and Akira, would kill instantly.

"I hope that's who you can do it with.

I pulled out the night knife and put my hand on the door.

Just like before, a huge door opens as if it had no weight.

As soon as I went inside, the door closed.

"... Huh!? Akira!!!

When there was nothing and I snapped my neck, Amelia, who was searching for signs, raised a voice that had never been more chopped.

Shortly afterwards, I jumped backwards from the spot feeling certain signs.

The place where I stood until earlier burned in an instant.

"... what is it now...

My whole body still feels poppy.

Amelia explored the signs still again.

"... coming next!!

To Amelia's voice, I avoid flailing.

Next time it was completely inevitable and I scorched my right thigh a little.

"... come on!!

"Akira, did you see that one now?

"... oh, just a little bit. It was a demon I had never fought before.

When I said that, Amelia blued her face and looked up.

"I have seen and fought.... a long time ago, to Kirica in an attempt to burn a sacred tree, a demon defeated by my sister, a dragon.

"... Dragon!?

I didn't think so, but I looked up, too.

"Grrrrrrrr!!!!

I could see a huge shadow sticking up on a high ceiling, almost like I saw on the dot, that would make my proximity strange.

Most of this world is also said to be extinct, a demon that boasts a quicker strength to count from above among demons.

"... did you flag it then...

A black dragon stared down at this one with golden eyes.

I thought the dragon-like, lass-bossy demons would come out around a good hundred floors of kili, but I was unexpected.

"Amelia, can you gravitate magic on that dragon and slap it down to the ground?

"... maybe I can. But I don't know how big it is, so I might hit this one. Danger."

Amelia said, looking at the right leg where the dragon's attack plundered.

While we were talking about that, the Dragon's attacks were pouring down without stopping.

"Don't worry about me. I will not die from such wounds. But I hope it stays that way. We'll hit it one of these days.

"... okay.

Amelia pointed her mouth and snorted reluctantly.

I offered my hand up and whined a word, a word that would trigger it.

"'Gravity Magic'.... crash, dragon.

"Grrr!!!?

It took tremendous gravity on a dragon with black scales, causing its giant to snap.

The claws that were hooked to the ceiling to stick broke one at a time, and the ceiling also cracked.

Dragons who poured all their nerves into resisting gravitational magic stopped attacking us and tried to spread the feathers that were on from their backs.

Even Amelia manipulates magic to stop it.

A few seconds after that, the dragon fell towards the ground.

I set up to intercept the dragon with the Night Knife God.

The dragon, which had fallen under tremendous momentum, stared at me as I twisted my body in the air.

"... bad.

I stick my knife straight out to my neck.

"The Night Knife God smashed the black scale of the hard-looking dragon and tore its throat open.