It can create conflict. For instance, in 'To Kill a Mockingbird', Tom Robinson is ostracized because of his race. This ostracism is a major source of the plot's conflict as Atticus Finch tries to defend him against the unjust society. It drives the story forward as the characters deal with the consequences of this social exclusion.
Ostracism in fictional books sometimes serves as a turning point in the plot. Consider 'The Scarlet Letter'. Hester Prynne's ostracism due to her adultery is the central event around which the entire story revolves. It changes her life completely and sets off a chain of events that include her relationship with Pearl, her interactions with Dimmesdale, and her own inner struggle for redemption. This ostracism shapes the plot's development from start to finish.
Often, ostracism in fictional works adds depth to the plot. In 'Lord of the Flies', Piggy is ostracized by the other boys. This not only shows the breakdown of order and civilization on the island but also adds layers of complexity to the plot. The group's treatment of Piggy reflects their descent into savagery, and his ostracism is a key factor in the overall tragedy that unfolds on the island.
Chapter 417, "The Real Struggle for Survival has Just Begun", is the clearest early answer because it turns Nina's situation into a concrete plot event.
Chapter 333, "The Clothing Design Room", is the clearest early answer because it turns Lin Manru's situation into a concrete plot event. Early on, [LOL, the little brother turns out to be socially anxious too, he.... By the end, You've been cooped up in your room all week staring at this book;
Chapter 582, "Fleeing Hastily", is the clearest early answer because it turns Guo Xing's situation into a concrete plot event. Early on, Luo Xuan pushed her away, disappointment filling his eyes.. By the end, Only Ai Xiaochun, lacking the strength to go on, was left behind and....
Chapter 481, "She Actively Pursued the Boss", is the clearest early answer because it turns Lili's situation into a concrete plot event. A useful checkpoint is the way the scene starts with Bai Lu ultimately couldn't exchange for 500 points.
Chapter 260, "Did You Take All These People Down?!", is the clearest early answer because it turns Chixia Mountain District's situation into a concrete plot event. The chapter gives readers a real answer by opening on Yan Dabiao, who deeply felt the sting of deception, flew into a rage...
Chapter 486, "So It's All Set Up, Right? Then She Will Set Up Too!", is the clearest early answer because it turns Jiang Yan's situation into a concrete plot event.
Chapter 164, "Congratulations to Jiang Yan for scoring one point!", is the clearest early answer because it turns President Shang's situation into a concrete plot event.
Chapter 225, "Just 100,000? Are you buying mineral water for the boss?", is the clearest early answer because it turns Jiang Li's situation into a concrete plot event.
Chapter 140, "Did Jiang Li Finally Crash?", is the clearest early answer because it turns Brother Yan's situation into a concrete plot event. The chapter gives readers a real answer by opening on In the evening, the setting sun was like blood, dyeing the entire...
Chapter 323, "This Person Has Ulterior Motives", is the clearest early answer because it turns Feng Shui's situation into a concrete plot event.