Mai and the Legendary Treasure

Leonard Poire, the famous treasure hunter, died years ago. Most of the treasures he found were since plundered by bandits, but he left behind a series of riddles about a legendary treasure that only a hunter as great as him will be able to find. Mai, a seemingly ordinary girl, has always dreamed of visiting another world filled with treasure and adventure. When she finally finds her way to one, she discovers the people there are just like her: obsessed with treasure! It's a world full of treasure hunters and bandits alike. She wanted to explore this new world with her good friend Kenichi, bu(Storyline via IGDB)