Black Cat lost his father when he was not born. He and his mother Black Forest have been dependent on each other since childhood. Fortunately, Black Mother is a "cheerful" person, allowing Black Cat to have a "normal" childhood and grow into a "normal" girl.
When Black Cat grew up, he was dragged by his friends to play the holographic online game "Tianxia". Met a stunning young man. Later, she discovered that he was actually her deskmate who was bullied by her when she was a child.