Originally, she was already his abandoned child, but he didn't expect that because of his momentary intolerance, he left a glimmer of hope for her, and as a result, she grew up rapidly.
Later, in order to find him, she established a huge power and became the most mysterious woman in red in the world. She never gave up looking for him, but she didn't know that all the harm she encountered was orchestrated by her master.
When they met again, he wanted to recruit her, but he didn't recognize her.
But she recognized that this powerful man was the master she was looking for.