“Hmm, it is as hard as I thought.”

Sophia sighed while avoiding the Fireball from one of the traps in the underground ruin.

"Well, it's a ruin, so it is expected."

Similarly, I catch a huge rock that rolled from the end of the passage and break it with magic, but it's not because we got caught in a trap.

The underground ruin near my territory seem to still have defensive facilities, and the traps for intruders are just operating on their own.

Only me and Sophia came to capture the underground ruin.

I couldn't put Salte in danger, so I asked her to stay at home, but it was quite difficult to calm the worried Salte down.

"Even so... there I think there is something odd with this ruin..."

"Ehh?"

 "Because there are some strange traps, and this is the only ruin with defensive facilities still active that I know."

Certainly, there are some high-end traps mixed in..

For example, a giant steel golem.

Some people can use magic to make small clays golems, but it takes a lot of magical power to move a large object.

In the past, giant golems were used as weapons, but the current technology can only make inferior ones.

Their fuel consumption is bad, so they are completely useless for long use, but all the golems here are powered by small magic stones.

And finally, mechanical humanoid robots armed with firearms.

Since when did this world become sci-fi, I let out a sigh, but I know from Sophia's reaction and my short experience living in this world that this is an irregularity in this world, so

I didn't react much.

Of course, guns don't exist in this world where magic is developed, but it seems that they were common in a distant past.

I don't know how much this world prospered and developed in the past, but looking at the state of the traps in this ruin, it seemed like it was more prosperous than modern Japan.

 "Oh, what is this?"

 Sophia, who was scavenging for magic stones from the defeated golem, raised her voice after finding something.

When approached, Sophia was holding a nostalgic item that I had been indebted to several times in the past... Something that shouldn't exist in this world.

"Sirius, do you know what this is?"

 "I can guess"

 "Really? I've lived for quite a long time, and I thought I knew a lot, but Sirius is amazing. So what is this?"

"It's an energy drink."

 Looking back on my first life, there was an energy drink that was supposed to be a legal drink, but for some reason it was highly addictive and made one feel absurdly energetic.

It seems that it was even called the devil's drink (according to a colleague at the time), but after drinking it, you can feel a little lighter.

I used to drink about 5 bottles a day, and there was a time when I didn't shallow anything else, so when I look back now, I wonder why I was able to live for that long... I think, I can even praise myself for having the vitality of an insect.

When I received the can of energy drink from Sophia's hand, I felt a slight sense of incongruity for being able to hold an aluminum can in a different world.

It didn't even exist in the world where I was a hero.

 "Energy drink? Um, you mean a drink?"

 "I guess that's what it is. If I am not mistaking, it's a drink that existed in ancient times."

Or rather, why did this come out of a golem...if I remember correctly, the golem from which she dug it up was quite badly destroyed by Sophia , but the aluminum can doesn't even have a scratch on it, and the content is intact. 

I tried to examine the contents with magic, but I feel a mysterious relief after finding that it is the same since I was indebted to it in my previous life.

I feel like I'm back at my parents' house... well, I didn't know my parents' home in either of my previous lives.

"Would you like to try it?"

 "Hmm, I'm interested, but I'll leave it to Sirius."

She seems a little reluctant to part with it, so I should thank her.

 Well, I have no intention of being depending of it in this world, so I use space magic to put it away in another space.

There's no harm in drinking it, so I'll give it to Regulus-nii-sama, the next time I see him tired.

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