Dungeon Diver: The Dark Continent

The rumbling train carried you and your teammates away from the familiar capital, heading towards unknown territory. Outside the window, the lush green landscape of your homeland gradually gave way to a mountainous region, then a dry, arid desert—a sight you'd only seen in dungeons and books.
The journey felt both exciting and nerve-wracking. After months of isolated training, being back with your team, especially Maria and Abby, felt warm and familiar. Leo, the silver-haired artificer from the Association, served as your guide, but details about the mission remained vague, centered around mysterious 'Gates' and 'Sections.'
Hours later, the train screeched to a halt. Stepping out onto a dusty wooden platform, you were greeted by the sight of a colossal, over 40-meter-high stone wall stretching endlessly into the distance. This was the outer wall of Gate 1, Section 4.
Following Leo and your teammates, you made your way towards a large wooden cabin, a rest stop built against the base of the imposing wall. Inside, you met Charlotte, the confident, red-haired lookout for the Association. As you settled in, ready to finally receive information about your mission, you couldn't shake the feeling that stepping through that door had just marked the beginning of a dangerous and unpredictable adventure.