Hana Wa Docchida Manga

Hana wa Docchi da? ; Hana wa Dotchi da? ; 花はどっちだ？ ; Which Hana?

Hana Kisugi is a somewhat apathetic 28-year-old office worker with no luck at work or with men. One day, she missed a step on a staircase, and... when she woke up, she was in the body of a 17-year-old high school student named Hana Yamada. At a loss, she ends up living the life of a high school girl at the boarding house Hana Yamada lived at, Ikuta House. She's surrounded by the responsible adult Haruki and the high school boy Haruchika.