It could be about Cave Johnson somehow being involved in the Apollo 18 mission. Maybe he's a secret backer providing unique technology. For example, his company's experimental propulsion system could be used on the Apollo 18 spacecraft.
Perhaps the fanfic could revolve around Cave Johnson sending his own team on a parallel mission to Apollo 18. His team could be exploring different aspects of the moon, like hidden caves or alien artifacts, while the official Apollo 18 crew is doing their own thing. There could be a race between the two groups to discover something valuable or dangerous on the moon.
One possible plot could be that Cave Johnson, in his never - ending pursuit of scientific discovery, gets wind of some strange readings related to Apollo 18. He then uses his influence and resources to get involved in the mission. Along the way, there could be conflicts with the official space program's bureaucracy, and his maverick approach could lead to both amazing discoveries and near - disasters on the moon.
Chapter 304, "Shh, Let's Not Disturb Big Sister", is the clearest early answer because it turns Big Sister's situation into a concrete plot event. The chapter gives readers a real answer by opening on But his cries and screams didn't elicit the slightest sympathy from...
Chapter 447, "Going Viral on the Internet", is the clearest early answer because it turns Zheng Xun's situation into a concrete plot event. The chapter turns that into something concrete by moving from Old Sir Jiang: "...." His face had grown even worse.
Chapter 581, "Where is everyone? Where have they all gone?!", is the clearest early answer because it turns Ai Xiaochun's situation into a concrete plot event. The chapter gives readers a real answer by opening on Inside the tent, no one felt like sleeping.
Chapter 609, "What identity would make the Crown Prince barbecue!", is the clearest early answer because the hidden truth stops feeling like mere subtext. Early on, Jiang Yan: "!!!" Right, the Cat and Mouse Game was over, they had....
Chapter 295, "Fan Meeting", is the clearest early answer because it turns Shixu's situation into a concrete plot event. The chapter gives readers a real answer by opening on Jiang Shixu arrived at the hospital early in the morning.
Chapter 524, "He Faces Imprisonment", is the clearest early answer because it turns Sister Li's situation into a concrete plot event. A useful checkpoint is the way the scene starts with Hello everyone, I'm the new director of 'Wilderness Survival 30...
Chapter 474, "Handcrafted Wooden Bed", is the clearest early answer because it turns Bai Lu's situation into a concrete plot event. The chapter turns that into something concrete by moving from Although everyone besides Jiang Li and Shang Shuyue was red-faced and...
Chapter 584, "The Wealthy Young Master Renounces Worldly Life for Love", 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 There wasn't a mirror on the small boat.
Chapter 660, "Includes Meals and Accommodation?", is the clearest early answer because it turns Mu Ye's situation into a concrete plot event. The chapter gives readers a real answer by opening on My point exactly," Jiang Li said, "I'll pay off the over twelve...