White Baroness' Dungeon Development

A young man who was about to inherit a huge inheritance, full of expectations and dreams, boarded the Titanic, a giant ship that symbolizes status. After that... Then he came to a world that was completely opposite to the world he knew. Dragons hung banners in the air to protest against national parks, tribes of lizardmen looted underground bug trains leading to the west, and he himself became a little girl who was about to take over the title of knight. In addition to the inherited territory and desperate people on the surface, there is still a world to deal with below the surface. What should he... She do?