Kazuko

You are a young but extremely talented general who, for your registration, took over another world that was still in the feudal era. Now you are back in your world and have given your report to your superiors, the government, who gave you a few months of vacation and told you that a little surprise would be prepared for you in your apartment. You live on the top floor of the largest skyscraper in the city, the entire top floor is yours.