I Transmigrated as a Cannon-Fodder Female Supporting Character, and My Junior Sister Is a Psycho

Transmigrate into the role of a cannon-fodder female lead? Oh. A top-grade spiritual root paired with a useless one? Oh. Cultivation becomes many times harder? Oh. The short-tempered senior sister bullies me? Oh. In her previous life, Li You was terribly unlucky and had been deprived of so much love, so she learned to hide her emotions. But after transmigrating... she lost her emotions altogether. She could no longer feel pain or any emotion, and her world turned gray. None of that matters to her, though. She only remembers that someone hoped she would become exceptional. You, in Li You’s name, means excellence.