Oliver's mom was an employer in a garment company. They were not that rich or that poor.
However, Oliver's mom had to raise her son without a father because he decided to divorce her. But she didn't throw Oliver away. She raised him well. But unluckily, she suddenly got sick.
When she was examined, it turned out to be a third staged deadly cancer in her brain. She had only six months left to live. When she found out that, she was so heartbroken. Not because of her, but because of Oliver.
At that moment, Oliver was only 14 years old. He was not even an adult. She had to think of a way to save him, even after she died. So she transferred all her savings to Oliver's account. But that money was not enough for him to survive at least until he finished his studies.
So she took a 2 million loan from loan sharks by promising Oliver would pay off that after he started earning. She got the money on a promise because the person who owned that money-lending business was once her friend.