I'm a Fragile Student, System Says I'm a Celestial Emperor

Fang Lin is reborn in his student days. In his past life, he was tricked into signing an usury contract due to his father's critical illness, leading to the destruction of his family. This time, he binds to a counter-attack cultivation system and discovers that his school and daily life are actually a cultivation world, including places like the Yunlan Sect and Medicine King Valley. Armed with the system, he defies fate to seek revenge and save the world.