Perhaps in this fanfiction, Rain is from an opposing force to the G Gundam universe. She kidnaps the G Gundam fan as a way to gain information about the Gundams. The fan might be a super - knowledgeable person about G Gundam, and Rain wants to use that knowledge for her own purposes, like to develop a counter - measure against the Gundams.
In the fanfiction, it could be that Rain is a character who has gone rogue. She kidnaps the G Gundam fan out of jealousy. The fan might be getting too much attention for their love of G Gundam, and Rain, who is used to being in the spotlight, can't stand it. So she kidnaps the fan to teach them a lesson and to get the attention back on herself.
Domon Kasshu could be the one to save the fan. He's the main character in G Gundam, and he's always ready to fight for justice. He would surely not stand by while a fan of his universe is kidnapped.
The plot could involve the Dark Gundam capturing Rain as a way to lure in other characters. Since Rain is likely to have friends or allies, the Dark Gundam could be using him as bait. This would then lead to a rescue mission by those who care about Rain, with lots of action and drama as they try to outwit the Dark Gundam.
One possible theme could be rescue. If Rain G is kidnapped by Yun Fat, then the story might revolve around someone coming to rescue Rain G.
There is a fanfiction called 'Beyond the Gundam Tournament'. It takes place after the events of the G Gundam series. It explores what the characters do next and how they adapt to a world without the tournament. It has a lot of character development and some great emotional moments.
I'm sorry, I haven't come across such specific 'yun fat kidnaps rain g gundam fanfiction' stories, so I can't recommend any directly.
The rain could be related to the Dark Gundam itself. Maybe the presence of the Dark Gundam somehow affects the weather, and the rain is a result of its dark power. This could create an interesting plot point where characters have to deal with not only the Gundam but also the environmental changes it brings, like the constant rain.
Another idea is a crossover where the technology of G Gundam is introduced into the Naruto world. Maybe the Hidden Villages start to develop Gundam - like mechas using their own unique ninja techniques. This would completely change the dynamics of battles in the Naruto universe.
In the fanfiction, Rain in the dark Gundam cockpit might be experiencing some sort of psychological struggle. The confined space and the dark environment could be closing in on him. He may be haunted by memories of past battles or losses. There could be some strange noises or glitches in the cockpit that are making him jumpy. He might also be low on resources, like energy or ammunition, and is trying to figure out how to survive the situation.
Well, in Devil Gundam fanfiction, rain time can be a turning point in the plot. It could be that during the rain, a secret about the Devil Gundam is revealed. This new information then drives the rest of the story forward, leading to new alliances or conflicts. Also, the rain can make it difficult for characters to carry out their plans, adding an element of struggle to the plot. Say, if they were planning an attack, the rain might disrupt their communication or visibility, forcing them to adapt their strategy.
Well, it could be about Naruto characters somehow getting involved with Gundam technology in a nightmarish scenario. Maybe Naruto and his friends find themselves in a world where Gundam mechas are being used for evil, and they have to fight against it using their ninja skills. It could also involve some sort of dark magic or curse related to the Gundam machines that they need to break.