Looking for a shoujo manga The story is about a high school girl that is very hard working...

Looking for a shoujo manga
The story is about a high school girl that is very hard working. Her mother passed away since she was little so she became the family's "mother". Her father works in a cleaning company or something like that but one day he fell ill so the girl went to work instead. The client was a high school blond boy, the ML. The ML was pretty rich and he becomes interested in the girl. He also had a bad relationship with his father at fist because he married another woman right after his mother death.
There also was a scene where some jelous girls accused the MC from stealing a necklace or similar.