Beginning: I Successfully Counterattacked with a Mobile Phone

I was born in a poor family in the countryside. After I went to college, not only was my ex-girlfriend defrauded me of money and sex, but I was also hated by the rich second generation at school. I became the target of bullying, and my life fell into darkness... I thought I would spend my life in such a muddle, but by chance, I received a courier. The mobile phone sent to me by a mysterious person changed my life after that...