You're All in School, Why Do You Have a System?

[Be patient and read the second chapter, and then I started to have fun] "Everyone is learning C-level powers, why do you have S-level powers?" The students asked angrily. "Because I have a system." Shen Ci replied, spreading his hands. Shen Ci traveled back in time to the body of a rotten gambling dog and was in huge debt. She thought that this would be the end of her life. Unexpectedly, she accidentally awakened the system and learned powers quickly and violently. However, this system is sometimes unreliable, and it is easy to learn incorrectly while learning... Never mind him! As long as you can get high scores, go to college, and make a lot of money, any system will work!