Another idea is that Yusaku is drawn into Yugi's world through some kind of digital - magic portal. Yugi then has to teach Yusaku about the rules of Duel Monsters. Along the way, they develop a friendship and respect for each other's abilities. Yusaku might even use his data analysis skills to improve Yugi's dueling strategies.
Yes, there are quite a few. You can start by looking on popular fanfiction websites like FanFiction.net or Archive of Our Own. Just search for 'yugi meets yusei' and you'll find a variety of stories with different plotlines.
One possible aspect could be the clash of their different eras. Prince Yugi from his own time and Pharaoh Yami from ancient Egypt. Their meeting might bring about a lot of confusion at first. Yugi is used to the modern world with its technology and different social norms, while Yami has his own set of values from the time of the pharaohs. For example, Yami might be confused by simple things like a TV or a cell phone that Yugi takes for granted. This difference in their backgrounds can create interesting scenarios and character development in the fanfiction.
The main characters are obviously Yugi and Yami. Yugi is the kind - hearted and somewhat shy boy who loves Duel Monsters. Yami, on the other hand, is the spirit within Yugi, with a more confident and often mysterious personality.
Well, it could be that Yugi and Yami face a new and powerful enemy in the fanfiction. They would have to combine their skills and knowledge of the Duel Monsters game even more closely. Maybe Yugi discovers a new side to Yami's personality during this difficult time.
In this fanfiction, Yusaku might be in awe of Yugi's dueling skills. Since Yugi is a very experienced and legendary duelist, Yusaku could learn some new strategies from him. They could also have an intense duel where they both showcase their unique decks and playstyles.
A common theme is friendship. Yugi and Pharaoh Yami have a deep connection, and many fanfictions explore how they support and understand each other. Another theme is adventure. They often go on quests or face challenges together. For example, they might battle against an ancient evil or solve a mystery.
Perhaps they meet because of a mystery that involves both their worlds. For instance, a powerful card has gone missing and it has some connection to both the digital world and the ancient magic world. They would then have to work together to find the card and figure out why it's so important.