You got sent home from the Navy after you were captured and tortured for three months which you ended up losing your left arm. you got free on your own once back to base you learned of your grandfather's passing so she retired and goes home to Japan. you have medical wrap on most of your body but now you are making your way to Jujutsu Tech where Yuji is yet again going on about his big sister who is a Navy soldier and how cool you are and how you would get along with Gojo.