Perhaps Davis is betrayed when a new powerful Digimon appears and offers his friends greater power. His friends, in their eagerness for more strength, side with this new Digimon, leaving Davis out. Davis then has to find his own way to become stronger and show them that true power doesn't come from betrayal.
One possible plot could be that Davis's friends turn on him because they believe false rumors spread by an enemy Digimon. The enemy might be trying to weaken the group by sowing discord. Davis, being trusting, is initially heartbroken but then realizes he has to prove his innocence and regain their trust.
One possible plot could be them facing challenges as a married couple in the digital world. Maybe they have to deal with new Digimon threats together while also managing their relationship.
Well, it could start with Davis and Yolei going on a dangerous Digimon - related adventure together. As they face challenges and rely on each other, their feelings start to grow. In a moment of relief after a big victory, they might share a spontaneous kiss. Maybe they were initially just friends, but this event could mark the start of a new, more romantic relationship in the fanfiction.
Yes, there might be. The Digimon fandom has a wide range of fanfictions, and a scenario like Davis and Yolei kissing could be a part of some romantic or adventure - themed fan stories. However, it may not be easy to find as there are countless Digimon fanfictions out there.
One character who could betray Davis is Ken. Maybe Ken feels that Davis is too impulsive and is leading the group in the wrong direction. So, in an attempt to take over and lead in what he believes is a better way, he betrays Davis.
Tai from the original Digimon series could be a great crossover character. They both have leadership qualities and it would be interesting to see how they interact, whether they compete or cooperate.
One possible plotline could be that Davis and Kari are on a dangerous Digimon adventure. In the heat of the moment, when they think they might not make it out alive, they share a passionate kiss. Another could be that they gradually develop feelings for each other over time during their normal Digimon - related activities, and the kiss is the culmination of their growing affection.
One idea could be that Davis gets transported to a different Digimon universe where the rules are all mixed up. For example, Digimon don't evolve in the traditional way. He has to figure out how to adapt and find his way back home while also making new friends and facing new enemies.
One interesting aspect in Digimon fanfiction about Davis and darkness is how his relationships with other characters change. His friends might be suspicious of him if he starts showing signs of being influenced by darkness. Or, he could find an unexpected ally who has also had experiences with the darker side of the Digimon world. This can create complex and engaging storylines.
A typical theme is teamwork. In many fanfictions, Davis and Lemon have to collaborate to overcome obstacles. Also, the theme of discovery is quite common. They might discover new Digimon or new aspects of the Digimon world together.
In some Digimon fanfiction, Davis could be depicted as being tempted by the darkness. His ambition or desire for power might lead him to consider the dark side, but in the end, he would have to make a choice between it and his friends and values. This makes for a very character - building storyline for him.