Why Didn't I Think of This?

“Wooooong.”

I was a little bored on the way here, but after playing word-chain with Chaerin unnie, we arrived before I knew it. It must have been farther than I expected, because I dozed off in the middle and woke up to find that we were already there.

This is the secret base of the Ohseong Group. The heart of advanced technology development, and Korea’s most sophisticated weapons testing and research facility!

“Princess, please come in.”

“Ah, okay.”

“Eve, you might get lost, so you have to stay close and follow unnie, okay?”

“Got it~”

From the outside, it just looked like a huge door had been planted right into the middle of a mountainside, with trees all around it and even moss on the door, making it hard to notice.

When Chaerin unnie used a skill and dragged the huge steel door panel open with a crunch, the door slowly began to open.

“Is it okay to open it like that?”...