Reincarnated, Hypoglycemic and Still Dare to Be a Queen?

An ordinary college student went to class without breakfast and passed out. He was reborn in a magical world and became the highest-ranking queen in the country. The Queen will prove that when matter collapses under its own magic, it will eventually produce a characteristic of infinite space or magic - "walkability". At Wanderability, the law that magic determines magic strength as we know it breaks down completely.