We've Met Before, Haven't We?

As I keep saying, only Baek Sang-a and I should know about this plan. The two of us, and no one else.

That means not even the Demon King—or any of the other professors—can find out.

Put that way, it might sound a little contradictory.

We're going to barge into the control room, so how could we possibly avoid being discovered?

That's where this sleep bomb comes in.

By now, there should be a full-blown melee taking place inside the control room.

We'll slip the sleep bomb in during the confusion.

Boom!!! Once everyone falls asleep, we'll go in.

The professors supervising things and the administrative staff will probably all fall asleep from this alone.

Then we can hide the fact that we broke in as much as possible...