Do the Three Brothers Dream of the Peach Garden? (2)

“......What exactly have you made?”

As you can see, it’s the new weapon for the Demon Realm you requested.

Aizen looked at Ulysses, whose real name was Kim Yul, as he calmly gave the briefing.

Aizen could not hide his shock.

This weapon called the 'Cheonja Chongtong' had completely shattered the common sense he thought he knew.

Of course, it had been a long time since gunpowder had been discovered and put to use. Fireworks that painted the night sky at every festival were proof enough of gunpowder's power.

But for various reasons, the technology had more or less fallen into disuse.

There was no need to research such a dangerous substance, prone to explosions, when magic was already an excellent substitute.

And if you asked whether it had enough potential to rival the power magic could produce, the answer was no.

......It had not been...