The Brave Dragon Slayer Was Forced to Work for the Dragon

This is the continent of Entena. The gods really exist and have given humans a "priesthood panel", but the panel only displays basic information: level, experience, and breakthrough missions. There are no bonus points, no skill trees, just a beggar's version of a beggar's version. Want to upgrade? Please complete the breakthrough mission first. It might be "defeat an ant" or "kill a dragon". A 14-year-old girl named Dinah Lianna faced exactly the latter. The giant dragon became extinct three thousand years ago. "This world is so fucking bad." She decided to lie down for the rest of her life, but the words she chose before traveling through time were still exerting force. She was chosen by the gods to be a "brave". Every year, we must venture to the misty land on the border of the continent, with a survival rate of only 20%... You can't complete the breakthrough mission, you can't level up, and you will die no matter what. Until an accident, she was approached by a giant dragon—— "Come, sign the contract and help me rebuild my body." "What's in it for me?" "Get my bloodline and break the shackles." Therefore, the brave man who was supposed to slay the dragon was forced to embark on the road to find its relics. By the way, let's take a closer look at this terrible world.