Under the shadow of the intertwining of magic and Muggle power, Tom Riddle - an orphan with Slytherin blood who was adopted by Muggle official Arthur Morton - became the adopted son of the Morton family. His existence is the product of Arthur's shrewd political investment and complex guilt for his deceased wife Cecilia Black (Hogwarts' eternal "White Moonlight", her early death is inseparable from Arthur's coldness).
What greeted him was Astraea Morton, Cecilia's biological daughter, a girl who inherited her mother's peerless beauty and extraordinary magical talent (Ravenclaw). His father, Arthur, was extremely partial to Astraea out of deep guilt, and the professors at Hogwarts (especially Dumbledore) also transferred their unfulfilled desire to protect Cecilia to her, making her the unstoppable focus. However, under this flawless aura, Astraea developed a pathological possessiveness and control over her nominal "brother" Tom. All the time of childhood and adolescence, all the "laughter" and unforgettable "pain" were given by her. In the name of "love", she weaves a sophisticated cage: she uses her father's power as a backing, uses her extraordinary talent to set up obstacles, uses mental retardation and cruel punishment to tame his unruliness, and only gives sweet poison when he is "comfortable".
