Villain or Hero..?

Tomura Shigaraki knew that he had a younger sister.. but when he finds out she's in hero course, what would he do? Mint Shimura, she is the adopted daughter of Mitsuki and Masura Bakugo. She knew she had an older brother, his name was Tenko Shimura, but what would Mint do when she finds out her brother is a villain? H...