This was different for a reincarnation type story. The FL travels to the Edo period following an accident and becomes a prostitute in the red light district. There she meets and falls for a hairdresser, but relationships are forbidden. I found the story lacked in a few areas for me. Firstly, she had been a prostitute for more than half a year but still acted like a shy virgin with Shouhei, all blushes and embarrassment. I doubt that one of the most in demand courtesans in the red light district would be like that after a week, let alone months. Also, the phone with the battery life of a year (we should all be so blessed). Not one I would re read, but it was ok.
Scattered Courtesan