Apocalypse of the Dragon from Another World

What's the most beautiful dream you've ever had? Let me tell you, A middle school boy, a time travel between reality and virtuality, and a nonsensical dream allow this boy to travel to a new continent in the first year of the ancient world, and let's see how the middle school boy plays in the ancient continent. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.