Those Years When I Was Cannon Fodder

At first, Chu Yu thought that she had transmigrated into a run-of-the-mill ancient household drama. And all she had to do was grow up, get married quickly, and then, it would be ideal if her husband met an untimely demise and no one bothered with her. Who would have thought that when she walked out of the backyard, she found out, oh-ho, this is a xianxia with a genius female protagonist- her eldest sister. Her eldest sister, Chu Qiong, had the golden finger of an immortal mansion. Her second sister, Chu Fan, who was suspected of being transmigrated from the same world as her (Captain Chu?), had a golden finger as well. And she, a cannon fodder, the little Chu Yu, having poor qualifications...