Quick Transmigration, No Pregnancy or Childbirth, No Whitewashing Scumbag Women, Please Keep It Normal 快穿文，不要生子文，不要渣女洗白文，求正常一点

There was a small-world novel where the female lead transmigrates into a man's body. I remember a scene where the male lead goes looking for her, the female lead who transmigrated into a boy, and ends up somewhere like a slum. Her life in that small world is really tragic.