My Sister Went to Tsinghua University After Joining the Point Exchange System.

The college entrance examination was approaching, and my parents forced me to take the college entrance examination for my sister. But their sister stopped them. "That's my biological sister. How could I be so selfish as to delay her future for myself?" My parents woke up and praised my sister for being sensible. I am also very grateful to my sister, but after the college entrance examination, I only got 0 points. The younger sister who did not take the college entrance examination was admitted to Tsinghua University as she wished. Later I found out that my sister was bound to the point exchange system. Every time she gets a compliment, she gets 50 points from me. After rebirth, my sister wanted to repeat her old tricks. But she doesn't know that I have awakened the mind-reading system, which allows everyone to hear her voice.