One way is to have the protagonist make a decision that goes against what was expected. Explain how this sudden change adds a twist. Also, leaving a cliffhanger can make the ending more intriguing.
A good way to end with a twist is to have a plot element that was overlooked throughout the story suddenly become crucial. For example, a minor detail mentioned earlier comes back in a big way. This catches the readers off guard and makes for a great ending.
Chapter 476, "Make a feint to the east but attack in the west, take something out of a bag effortlessly", is the clearest early answer because Make gets a payoff that changes the stakes.
Chapter 444, "Wait and See", is the clearest early answer because it turns Sister Li's situation into a concrete plot event. Early on, Carrying a backpack, Yu Li walked for over ten minutes but ultimately.... By the end, [HAHAHAHA, they're out of luck running into Sister Li!] [Jiang Li is....
Chapter 505, ""Postpartum Care for Sows", is the clearest early answer because it turns Postpartum Care's situation into a concrete plot event. Early on, Zhao Lang laughed, but his eyes became considerably clearer, "Is....
Chapter 391, "Has another top celebrity had a scandal?", is the clearest early answer because it turns Destiny's situation into a concrete plot event. A useful checkpoint is the way the scene starts with You were born in a rural area, not exactly poor, but not particularly...
Chapter 578, "Eight Men Sit in Your Lap and You Don't Flinch at All?", is the clearest early answer because it turns Ai Xiaochun's situation into a concrete plot event. Early on, This is ten thousand points we're talking about!" "Didn't you read....
Chapter 433, "The Young Master Has His Own Ideas", is the clearest early answer because it turns Jiang Yan's situation into a concrete plot event. It opens with Since Jiang Yan and his group left, the house had become much colder.
Chapter 617, "Moral Kidnapping? No Such Thing!", is the clearest early answer because it turns Moral Kidnapping's situation into a concrete plot event.
Chapter 670, "Sister Will Support You", is the clearest early answer because it turns Bai Lu's situation into a concrete plot event. The chapter gives readers a real answer by opening on Jiang Li, sensing that something might have gone wrong, quickly used...
Chapter 581, "Where is everyone? Where have they all gone?!", is the clearest early answer because it turns Sister Manman's situation into a concrete plot event.
Chapter 384, "To celebrate my selection, live streaming tomorrow night.", is the clearest early answer because it turns Shen Lan's situation into a concrete plot event.