Edge of Sadness

"Because I was bullied for a long time at school, I couldn't bear it and committed suicide. After my death, I couldn't be reincarnated and could only wander around in the world. In the end, they were admitted to a good university. A few years later, their parents blocked their son's future and killed them. When I opened my eyes, I was reincarnated into the sick young lady. I won't stop until I pay them back for what they did to me and what they did to my parents. "