Sometimes they do, but not always. It depends on how much the preview is intended to give away.
It varies. Some comic previews are designed to give a good sense of the story and art style, while others are more teasing and don't show much. It really depends on the publisher's strategy.
Comic previews can be a mixed bag. They might show key elements or just give a hint. Usually, they aim to pique your interest without spoiling everything.
Chapter 326, "Divide and Annihilate, Shattering Divine Light, Trump Card Activated!", is the clearest early answer because it turns Snow Hill's situation into a concrete plot event. It opens with A Frost Wolf less than two meters in length suddenly charged out from... and closes on However, how could Xia Hong let it escape?.
Chapter 241, "Thieves Will Shed Two Tears When They Break In", is the clearest early answer because it turns Jiang Li's situation into a concrete plot event. The chapter gives readers a real answer by opening on It wasn't the director," Jiang Yan said with a blank expression, "Did...
Chapter 338, "Rapid Progress, Martial Arts Skills, Dual Eastern Advances, Dormant Phase 6", is the clearest early answer because Beining Mountain finally turns buildup into a real advancement. The chapter gives readers a real answer by opening on At that time, we only need to keep the secret of the hidden passage,... and ending on This Cold Wing Sword was crafted by Mu Dong last month..
Chapter 346, "Formidable Soldiers and Brave Generals, One Against Three, Reason Behind the Beast Tide", is the clearest early answer because it turns Xia Hong's situation into a concrete plot event. The chapter turns that into something concrete by moving from That shadow moves just like the Lord, throwing a right punch." "A... to Gulp..." "From five hundred meters high, the shockwave of a Beast....
Chapter 216, "I'm the Director, I Call the Shots!", is the clearest early answer because it turns Shang Shaojing's situation into a concrete plot event. The chapter turns that into something concrete by moving from The production team also took advantage of the situation to start an...
Chapter 131, "This Lady is Here to Travel", is the clearest early answer because it pushes Braised Lion into a new phase or setting. The chapter gives readers a real answer by opening on Just around mealtime, Director Sun came over pushing his small food...
Chapter 19, "I dare you to touch her!", is the clearest early answer because it turns Xiang Hao's situation into a concrete plot event. A useful checkpoint is the way the scene starts with What criminal law is this or that, this was originally none of your...
Chapter 326, "Divide and Annihilate, Shattering Divine Light, Trump Card Activated!", is the clearest early answer because it turns Cold Beasts's situation into a concrete plot event. It opens with A Frost Wolf less than two meters in length suddenly charged out from... and closes on However, how could Xia Hong let it escape?.
Chapter 328, "Unexplainable Anxiety, Jade Dew Stone, Li Xuanling's Panic", is the clearest early answer because it turns Peng Bo's situation into a concrete plot event. The setup is Although the Wolf King has been executed, there are still at least..., but the pressure keeps building through Of course, these Cold Beasts are currently scattering in all....