Princess's manual to save the dragon

Worked to death by endless overtime, she collapses in a subway station before dawn. With her last breath, she jokes to the universe, "If there’s a next life, let me be born rich, powerful, and spoiled beyond reason.” The universe takes her seriously. She wakes up inside a game world as a bona fide princess. Supreme authority, limitless wealth, royal status... Everything is hers for taking.