You're In For It - 2

While the Demon Realm generally had the appearance of a city, making the word 'modern' quite fitting in many ways, the castles where the Grand Dukes of the Demon Realm resided had an appearance reminiscent of a medieval city, far removed from modernity.

*It's probably for power, authority, and all that, obviously.*

Such places usually have strict rules, making them quite troublesome. But since I'm in the dominant position this time, it probably doesn't matter.

*Anyway, what's important is the Dark Mage said to be underground.*

An ancient castle, out of place in a city-like setting. And the Dark Mage said to be beneath it...

It could just be my imagination, but usually, what lies beneath such places is often a Monster that has lived for a long time. I thought it was entirely possible that the Dark Mage had transformed into a Monster. Just then, the massive Iron Door opened, and the Grand Duke of the Southern Demon Realm greeted me.

"Oh, welcome."

Perhaps because of my past record of knocking everyone out, fear was etched on the Servants' faces. After all, it wasn't just one or two I'd taken down; I'd flattened everyone here, so such a reaction was only natural.

Seeing that sight, the Grand Duke of the Southern Demon Realm began to guide me, carefully watching my expression.

"If you go this way, there's a path leading down."...