I'm Searching and Fighting in the Dungeon

[Fantasy world, slow-paced adventure, apocalypse, steampunk, search and rescue] I'm in a dungeon and don't want to grow mushrooms. Awakening "Adventurer's Treasure House", Shiraishi, a time traveler with a large insurance policy, decided to run away from knife and act as a hoarder. "No, brother, are you here for a trip?" "We feel so sorry for you when we see these things in the bag!" After checking Shiraishi's backpack, two heavily armored warriors with full plate armor complained with expressions of shit on their faces. "Forget it, forget it!" "What kind of treasure can a commoner pick up who has only a valuable sword in his body? Let him go." The mage lady who was the employer of the team and was dressed in gorgeous clothes said with pity. Wait for the three to leave. Looking at the gleaming legendary gold in the treasury, it is said that it can buy the entire dungeon. Shiraishi remained silent for a long time...