(Y/N) Shimura: Origins

*warning: there will be spoilers*

You are the younger sister of the great Nana Shimura. You trained alongside Toshinori before he became the Symbol of Peace. The two of you got along quite well: trained together, laughed together, and spent too much time together much to your sister's dismay. However, as of present day you are considered dead. You "died" alongside your sister in her battle against All for One. What happens when Toshinori finds out you're still alive after all these years? What happened to you during that time? Read more to find out ;P