Faked girl

A secret business was operating where "people who want to give up on life transfer their existence to people who want to start their lives over." Taabe Ryuichi, a university student who had repeatedly failed and wanted to restart his life, receives an existence transfer from Fukumoto Haruna, a high school girl who had lost her parents in an accident and was contemplating suicide. As a condition, Ryuichi is given a chance to restart his life under the premise of "impersonating Haruna." As his younger sister, who coincidentally enters the same school, quickly sees through his disguise, and as he becomes confused about his own gender while living as a girl, will he be able to fulfill the chance he was given as "Fukumoto Haruna"?