In an air crash, she became an orphan, and so did he, but it was caused by her father. She was brought back to Mu's house when she was eight years old. She was taken back to Mu's house by him who was ten years older. She thought it was his kindness, but unexpectedly, he came to collect debts For ten years, she always thought that he hated her, that his tenderness could be given to everything in the world, but not to her... He didn't allow her to call him brother, she could only call him by name, Mark Mark, Mark Mark, Over and over again, deeply rooted...