The World Behind the Door, Where Men Are Few and Women Are Many

【Mary Sue + a world with far more men than women + one woman, multiple men + travel between two worlds + cross-dressing as a man + a heroine who is warm on the outside and cold within】 The story is set in a world of mid-level martial arts, so the law of the jungle is a constant theme. !!! Warning!!! The heroine is not only a total flirt, but also a smiling tiger. Qiu Qiu went back to her hometown for a visit and accidentally opened the door to a whole new world. The ancient world on the other side of that door not only has martial arts, but an astonishing ratio of twenty men to every woman. And Qiu Qiu can travel freely between the two worlds.