What does a System that knows nothing about feelings need to learn in order to become human? Happiness, anger, jealousy, sadness... and love.
The final mission of z52 System was to become human. At first glance, it chose Bai Jie, who was crying her eyes out. It named itself Bai Zhu and took Bai Jie across different eras. Through her, it experienced all kinds of emotions, and in the end, it learned how to love...
Bai Zhu and Bai Jie both possess people and play roles, learning about emotions through their characters. There will probably be four or five worlds (Bleach, The Prince of Tennis, Katekyo Hitman Reborn, Hunter x Hunter, and others). There may also be some less popular series featured in the background.