Lei is his creator that made android, but recently android killed his creator since he was being too cold to him for his liking. Lei kept on telling Android that he has to replace Nathan but Android likes him too much. He’s supposed to be yan’s body gaurd like Nathan. When lei tried to make android cold he had his chance to kill him though no one knows who killed him but Android. P3-ng killed some people without Nathan and Yan knowing. Androids half human half robot.