The heroine has a father who disappeared and a mother who was sick, and her life has been very difficult since she was a child.
There is a nice person living next door to her, who always helps her mother and daughter. The heroine repays her kindness and has a good relationship with their children. She is also quietly making a living and trying to make money in any way.
It was actually the eldest son who interacted with the heroine the most, but later the heroine's mother became more seriously ill. The heroine was starting a business and money was tight. It was a critical moment and she didn't have that much money. She didn't hesitate much, thinking that she would have to treat her mother even if she missed this opportunity.
But the neighbor's youngest son, who is famous for playing football, paid for the surgery first.
The heroine said solemnly: One day I will repay you.
Mission: Self-reliance