She was originally the sweet girl of heaven, but because of a little trick by her father's secretary, her father misunderstood her mother and they divorced. Her father married his secretary and gave birth to a daughter. Her father's attention slowly shifted to his sister and he ignored her.
Not only can her younger sister bully her, but even the servants don't treat her as a eldest lady. She did not become depressed or uneasy because she still had her brother Keigo. It was not until her fiancé was snatched away by her sister that she realized that there was no place for her in this family and she chose to leave.
During her journey she met her sun --- Echizen Ryuya
She returned to Japan because her mother wanted to remarry