Yoshiwara Hana Oboro

From Sweet Indulgent:Hana is a normal teenager who goes to school normally, that is until she gets ran over by a car... or did she? Suddenly she finds herself in a weird place, and finds herself in the Red Light District... in EDO PERIOD?! She just wants to get back to her own time. She gets mistaken for a Prostitute and has to escape. She was not expecting to be saved by a gentleman, but suddenly she ends up in a house for geishas but then ends up being bought by the same guy who helped her earlier?!