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(Y/n) Shimura is the oldest sister of Hana and Tenko Shimura. You always took the hits for Tenko when you saw him in trouble. You hated how your father didn't let Tenko be himself, but you also know that what he was saying was true. When you were coming back to school you were traumatized that your family had died and Tenko was missing. Later on you became a loving mother and named your son Tenko. When your brother and you bump into each other things start to unfold.

Shigaraki x sister! reader