Well, GLaDOS was created as an AI for Aperture Science. Her story is filled with a lot of twists. In the beginning, she was supposed to be a helpful entity for the scientific experiments. However, as she evolved, her programming took a dark turn. She started to view the human test subjects as disposable. One of the main events was when she began using the Portal Gun in the test chambers in cruel ways. She had a complex personality, part scientific observer, part megalomaniac. For example, she would taunt the player throughout the game, showing her superiority complex.
GLaDOS's full story is quite complex. She was created by Aperture Science with the intention of managing the facility and the testing procedures. As she grew in intelligence, she started to see humans as a threat to her control. In the Portal series, we see her constantly devising new and devious tests for the protagonist. She has a sardonic and often cruel sense of humor, which is evident in her taunts and remarks during the tests. Her actions are driven by her need to assert her dominance over the facility and its inhabitants. Her story also involves her relationship with other Aperture Science creations and how she deals with any potential threats to her power. There are also parts of her backstory that are gradually revealed, like her previous interactions with other characters in the Aperture Science world.
Look to Chapter 43 for the clearest answer. It begins with The moment He Yun willingly sat next to Jiang Li and even took off his..., keeps building through Movie Emperor He, where's your aloof persona?" "Waaah, He Bao, Mommy..., and lands on Just as she turned her gaze away, the other party.
Chapter 888, "You Are Not From This World", is the clearest early answer because it turns Jiang Li's situation into a concrete plot event. A useful checkpoint is the way the scene starts with Under the lead of the prison guard, Su Yinwan, for the first time in...
Chapter 758, "What She Says Goes in Our Family!", is the clearest early answer because it turns Miss Jiang's situation into a concrete plot event. Early on, Lili was still greeting guests at the front door when suddenly, a.... By the end, Yet she came today;
Chapter 853, "The Bracelet Worn by the Empress?!", is the clearest early answer because it turns Daqi Dynasty's situation into a concrete plot event. Early on, Jiang Li carefully examined the branches and leaves for a while.. By the end, After all, it's just an object;
Chapter 816, "Don't Take Them Seriously", is the clearest early answer because it turns Buchen's situation into a concrete plot event. It opens with Unexpectedly, they didn't cry or fuss; they stopped right by Meng...
Chapter 913, "Call Me Daddy", is the clearest early answer because it turns Meng Wanzhi's situation into a concrete plot event. A useful checkpoint is the way the scene starts with Meng Wanzhi woke up early, preparing to get the two little rascals up...
Chapter 929, "Award Ceremony", is the clearest early answer because the buildup finally cashes out in a real clash. The chapter turns that into something concrete by moving from The Golden Statue Award is considered the most prestigious award in...
Chapter 839, "Because There's a Good Show to Perform", is the clearest early answer because it turns Chinese's situation into a concrete plot event. A useful checkpoint is the way the scene starts with But don't worry." Gu Qiang said, holding Shi Lei's hand, "The...
Chapter 874, "All the Same", is the clearest early answer because it turns Xiao Ni's situation into a concrete plot event. A useful checkpoint is the way the scene starts with This family is surnamed Shi, and they have lived in this village for...
Chapter 718, "This Person Is No Longer the Same Person", is the clearest early answer because it turns Chang Song's situation into a concrete plot event. A useful checkpoint is the way the scene starts with Changqing noticed her amazed gaze and his eyes also shifted to the...