27-sai OL, Isekai de Yuujo no Kanri Hajimemasu

A 27-year-old office lady is reincarnated into the world of an otome game as the manager of a brothel in Yoshiwara, a place full of unsavory characters. Her reincarnated character "Yarite" seems to be quite the villainess herself...! Survive as a minor character without any help! A cliffhanger isekai reincarnation story!

(Source: Ganma!, translated)