Perhaps in a reincarnation scenario. Atem and Tea are reborn in a modern world. They have a strange sense of deja vu when they meet each other. As they get to know each other again, their old feelings start to resurface. There are obstacles like their different social statuses in this new life, but their love overcomes all.
In a post - Battle City world, Atem doesn't fully leave. He exists in a sort of limbo between the worlds. Tea, who has always had a deep connection with him, starts to sense his presence. She embarks on a journey to find a way to free him from this limbo and bring him back to the living world so they can be together in eternal love.
A powerful dark sorcerer could be an antagonist. He might be jealous of Atem and Tea's love and try to break their bond. He could use dark magic to create illusions that make them doubt each other or put physical barriers between them.
A possible plotline could be a time - travel scenario where Kaiba somehow travels back in time and meets Atem before he was sealed away. This could lead to a series of events where Kaiba tries to change the course of history regarding Atem. Another plotline might be that they are both trapped in a mysterious dimension together and have to rely on each other to escape, which forces them to set aside their differences and work together.
There could be 'atem and tea fanfiction' that delves into their backstories. For instance, a story that reveals how Atem came to be in possession of the Millennium Puzzle and how Tea's family history is intertwined with the events related to it. This could add a whole new layer of depth to their characters and their relationship.
Typically, it might include the anticipation and excitement of the pregnancy. There could be scenes of Atem and Tea preparing for the baby, like decorating a nursery or buying baby clothes.
One interesting story could be about Atem and Tea having an adventure in a parallel dimension where they have to solve a mystery together. Maybe they encounter strange creatures and use their unique skills to overcome obstacles.
One common theme is romance. Fans often explore the relationship between Atem and Tea in a romantic light, creating stories of love and affection between them.
Another theme is adventure. Writers might create scenarios where Atem and Tea go on adventures together, facing challenges that bring them closer and strengthen their bond. It could be in a magical world or a new, unknown land.
One common theme could be friendship. Their meeting might lead to the start of a beautiful friendship, with them getting to know each other's quirks and personalities.
One thing that can make it unique is the exploration of their relationship in a different light. It might show a side of their connection that isn't as explored in the original source. For example, it could delve deeper into their emotional bond.
I'm not sure which specific 'atem and tea lemon fanfiction' is out there. You could try searching on popular fanfiction websites like FanFiction.net or Archive of Our Own. Just type in the names 'atem' and 'tea' and see what comes up.