The key points in FF15's full story include Noctis' quest for power. He needs to master his abilities to face the threats. The destruction of his city by Niflheim is a major turning point. It forces him to take action. Moreover, the sacrifices made by his friends for him are also important aspects. They show the depth of their loyalty and friendship. For example, Ignis losing his sight in order to protect Noctis.
One key point is Noctis' journey. He has to grow from a carefree prince to a true king. Another is the conflict with Niflheim. Their aggression towards Lucis sets the whole story in motion. Also, the friendship among Noctis and his friends is crucial as they support each other throughout the story.
In FF15's full story, the most important aspects are related to Noctis. His discovery of his heritage and his connection to the Crystal is a big part of it. Then, the battles against the daemons that are spreading across the land due to the actions of Niflheim. And the final battle where Noctis has to make the ultimate sacrifice to save his world. The story also delves into the relationships between the main characters, like how Gladiolus challenges Noctis at times to make him stronger, and how Prompto's past is revealed and how it impacts their group dynamic.
Chapter 18 is the strongest chapter-level answer because it starts from In the corner, a girl in a black dress sat quietly, holding a glass of... and follows through on Hurry home, what is a young lady like you doing running to a place like....
The best chapter pointer here is Chapter 13, "Killing the Chicken to Scare the Monkey". It opens with Sensing that something was off with Jiang Yan, Jiang Yan dismissed the... and closes on How could this happen..." Lin Manru didn't want to hear any more of her....
If you want the clearest chapter reference, go to Chapter 33. Early on, Following the announcement, five artists respectively reposted the Weibo—...; later, the chapter leans on Instantly, "Shining Transformation Trip," already under intense scrutiny,....
The best chapter pointer here is Chapter 40, "The National Museum Speaks!". It opens with [Jiang Li claims she copied this herself? and closes on The handsome guys on this show are so difficult to deal with..
Chapter 720, "A Bastard Child Behaving So Arrogantly?", is the clearest early answer because it turns Zhou Wenqi's situation into a concrete plot event. A useful checkpoint is the way the scene starts with As finals approached, with a wave of his hand, Jiang Li sent Jiang...
Look to Chapter 34 for the clearest answer. It begins with Seeing that the public sentiment wasn't quite right, Su Yinwan felt..., keeps building through It was she who had anonymously paid someone to write the critical article..., and lands on Now that Lili is misunderstood, they start to kick us.
Chapter 815, "You've eaten through all the savings!", is the clearest early answer because it turns Jiang Cheng's situation into a concrete plot event. A useful checkpoint is the way the scene starts with Jiang Zhao Yuan was quite surprised, "Right, absolutely right, haha,...
Chapter 616, "I'm Going to Save Sister Xiao Wan!", is the clearest early answer because it turns Sister Bai Lu's situation into a concrete plot event. The chapter gives readers a real answer by opening on Since the storm had hit that morning, he had been preoccupied and out...
Chapter 830, "Pinky Promise for 100 Years", is the clearest early answer because it turns Jiang Buchen's situation into a concrete plot event. The chapter turns that into something concrete by moving from At eight o'clock in the evening, Jiang Li arrived home.
Chapter 882, "Can you still not forget your first love?", is the clearest early answer because it turns Xu Mei's situation into a concrete plot event. Early on, Seeing the evidence Lin Jingshan presented, Xu Mei's body trembled.... By the end, In less than five minutes, the area was cleared..