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Y/n and Izuku Midoriya were twins. Izuku wished to become a hero and Y/n just wanted to support her brother. But when Y/n developed her quirk yet discovered her brother to be quirkless, she swears off her quirk. To stand by her brother's side, as powerless.
An argument ensues and the twins separate near the end of junior high...
y/n joins a secret organization and is sent on a mission at UA high school, only to discover that her other half attends the school.

{I DO NOT OWN ANY RIGHTS TO THE ORIGINAL CHARACTERS, STORY AND CHARACTERS OTHER THAN MY OC IS OWNED BY Kōhei Horikoshi. I IN NO WAY CLAIM ANY RIGHTS TO THE ORIGINAL STORY}