The FL regressed to the child caring novel. But instead the older brother, she is the older sister? After regaining her memory she will regain what is rightful hers. So what if she is not male? She can be strong too.
You may feel your favorite manga should be gathered together into distinct categories for your own reference and, now, you can do this with a LIST. After you've created your list or lists, you can proudly recommend them to other manga fans to showcase and share your taste in manga.
Of course, I'll claim Palimony!