Waking up from his sleep, the protagonist has been reincarnated as an earth dragon.

Unable to do anything in this situation, he's now enjoying his life as an earth dragon.

However, he found out he is the best material humans can find.

I'm not a material game!

This is bad! At this rate, I will be hunted by the human!

This is the story of a protagonist who was reincarnated as an earth dragon and his struggles in building the dungeon and making golems to protect himself and sleep.