"Magic doesn't exist, but dragons and monsters live everywhere in the fantasy Middle Ages.
On a high mountain overlooking the village, a huge dragon that has fallen into a deep sleep lives."

The main character, a tomb robber, who follows the rumors he hears from time to time
Hearing uncertain rumors that there are dragon eggs traded for astronomical prices in the middle of the mountain,
Blinded by the amount, he arrived at the mountain, but it was a very dangerous place.

You clear all the stages without knowing the sleeping dragon and get the dragon's eggs.
Can you hijack and escape safely?