So, my biological grandmother was named kim sun. She died when my mother was 8, she was born in South Korea.
Sun's mother hated her because she was half Japanese and got a good reason, during WW2, sun's mom was raped by a japanese soldier.
Eventually, sun and her brother ran away to a forest, without food. They could only find water. Eventually, sun's brother managed to go back, but sun ended up in an airport and ended up in America.