Where am I?

It’s so dark I can’t see anything in front of me. I can’t even tell whether I’m standing or sitting. Gordius calmly tried to recollect his past. Why am I in this darkness?

“...”

His memory wasn’t damaged. He could remember everything clearly.

He had accepted the offer from the crazy professor.

Yes, the professor had dangled the alluring bait of ‘another world’. At first, Gordius had been skeptical, but... the sketches of mechanical devices—things he had never seen before—drawn by the professor shocked him deeply.

They weren’t of this world. He could tell that much instinctively. …