A great plot might be the exploration of how the different forms of space travel in both universes interact. In Mass Effect, there are the Mass Relays, while Star Trek has warp drive. A fanfiction could explore what would happen if a Star Trek ship tried to use a Mass Relay or vice versa. Also, the cultural exchange between the two universes could be fascinating. For example, how would the more militaristic elements of Mass Effect react to Star Trek's Prime Directive? Or how would the utopian ideals of Star Trek be received in the often harsher Mass Effect universe?
One interesting plot could be the combination of Mass Effect's biotics with Star Trek's technology. Imagine a character from Mass Effect using their biotic powers to interface with Star Trek's advanced computer systems in a unique way. Another plot could involve the different species from both universes coming together to face a common threat, like a powerful new enemy that neither could defeat alone. And perhaps a story where a Star Trek ship ends up in the Mass Effect galaxy and has to navigate the complex politics there while also trying to find a way back home.
Well, there could be a plot where a Mass Effect character is somehow beamed onto a Star Trek ship. This could lead to all sorts of misunderstandings and adventures. The Mass Effect character might be initially distrustful of the Star Trek crew's more peaceful ways, while the Star Trek crew could be shocked by the Mass Effect character's combat - oriented skills and the use of biotics. Then, they could gradually learn from each other and work together to solve a mystery that spans both universes, like a strange energy signal that is causing disruptions in both galaxies.
Chapter 661, "Uninvited Guest", is the clearest early answer because it turns Ji Yanbai's situation into a concrete plot event. A useful checkpoint is the way the scene starts with A moment later, Zhuola let out a cold laugh, her voice hoarse as she...
Chapter 286, "I Won't Let Anything Happen to Either of Us", is the clearest early answer because it turns Jiang Li's situation into a concrete plot event. Early on, Throughout these reincarnations, Zhao Lang had gradually discerned a....
Chapter 413, "This Island is Too Strange", is the clearest early answer because it turns Guan Xiong's situation into a concrete plot event. A useful checkpoint is the way the scene starts with Guan Xiong was already a well-known outdoor adventure vlogger on a...
Chapter 696, "I Am a Very Narrow-Minded Person", is the clearest early answer because the buildup finally cashes out in a real clash. A useful checkpoint is the way the scene starts with But she heard Jiang Li say, "Mom, you don't need to be anxious, I'm...
Chapter 282, "Whereabouts Unknown", is the clearest early answer because it turns Jiang Yan's situation into a concrete plot event. It opens with The other villagers quickly heard the commotion and hurried over. and closes on Why isn't there a live broadcast reporting on their itinerary?]....
Chapter 833, "She’s Also a Quick Transmigrator?!", is the clearest early answer because it turns Sister Li's situation into a concrete plot event.
Chapter 634, "All Villains", is the clearest early answer because it turns Jiang Li's situation into a concrete plot event. A useful checkpoint is the way the scene starts with But, luckily a few days ago, Jiang Li managed to expand his team from...
Chapter 461, "Team Q Established!", is the clearest early answer because it turns Established's situation into a concrete plot event. Early on, Bai Lu cried while recounting her ordeal to Jiang Li.. By the end, Bai Lu is an artist with Chen'an Entertainment, a powerful company....
Chapter 656, "If he's the grandson of the richest man, then I am the richest man!", is the clearest early answer because it turns Mr's situation into a concrete plot event. Early on, But if she knew he was still unchanged, or even worse than before,....
Chapter 672, "Wealth Brings Wealth, the Early Bird Catches the Worm!", is the clearest early answer because it turns Lili's situation into a concrete plot event.