Interstellar College Entrance Examination: I Am a Profiteer in the Examination Room

Traveling across the interstellar examination room, I earned millions of points a day by exploiting loopholes in the rules. In an era where combat power is paramount, open a "reverse roll" dungeon - dig deep into loopholes in the rules, buy low and sell high to monopolize materials, play with the mechanism to double rewards, and turn the life-and-death game field into a gold rush with millions of points a day!