They could find themselves in an unfamiliar territory. Since they are left behind, they may be cut off from their normal supply lines. So, they'll need to figure out how to get food, water, and shelter. Natsu could use his fire to cook or keep warm. Erza, with her strategic mind, might find a way to build a shelter. They may also meet some new characters who are either friends or foes. And these new interactions could lead to various plot developments. They might also have time to reflect on their past actions and relationships, leading to some character growth.
In this fanfiction, they might have to face a series of challenges alone. Maybe they'll encounter powerful enemies that they have to defeat without the help of their usual comrades. They could also discover new powers or abilities within themselves during this time of being left behind.
Well, perhaps they'll start to rely more on each other. Natsu and Erza could form a stronger bond. Natsu might use his dragon slayer magic in more creative ways, and Erza could come up with new armor combinations to deal with the threats. They may also stumble upon a hidden mystery or a long - lost treasure while being left behind, which could change the course of their adventure.
In this kind of fanfiction, they might face various challenges. Maybe they'll have to find their way back on their own. They could encounter dangerous magical creatures and have to rely on their own skills and the bond between them to survive.
It's Natsu and Erza. Natsu, the energetic dragon slayer, is always ready for a fight and has a great sense of loyalty towards his friends. Erza, with her strict yet caring nature, is a force to be reckoned with. In this fanfiction, their individual skills and personalities will likely be explored more deeply as they are left behind.
The main characters are clearly Natsu and Lisanna. Natsu is a well - known character with his fiery personality and powerful dragon - slayer magic. Lisanna is also important, she has her own set of skills and a unique relationship with Natsu.
One possible plot could be that they discover the pregnancy and then face challenges together. Maybe they have to deal with the reactions of their friends in the guild, some being happy and supportive while others might be worried about how it will affect their adventuring lives.
Perhaps in the fanfiction, Natsu meets Erza in a completely new setting, like a parallel universe where the Fairy Tail guild doesn't exist yet. They start off as strangers but quickly realize they have similar goals. Erza might initially be a bit distrustful of Natsu's wild ways, but as they face challenges together, such as a group of bandits attacking a village, they learn to trust and rely on each other.
One possible plot is that a time - travel or alternate - reality situation occurs where Natsu and Erza are already married and have a baby. The story could show how they adjust to this new family life. Natsu might be the fun - loving dad who plays with the baby using his fire powers in a safe way, while Erza is the strict but loving mom who makes sure the baby is well - behaved and learns proper values. They would also have to deal with the reactions of their friends in the guild, some of whom might be shocked or overly excited about the new addition to their family.
Well, perhaps Erza was tricked into believing something false about Natsu. Maybe she was misled by some enemy who made it seem like Natsu was going to endanger the guild. So, in her sense of duty to protect the guild, she took actions that Natsu perceived as betrayal.
It could be about a misunderstanding. Maybe Natsu is under a lot of stress or has been wrongly accused, and Erza's actions or words accidentally trigger his outburst.
Well, it could be about Natsu being accidentally or deliberately left in a certain place. Maybe his friends go on a mission without him, and he has to find his own way back or prove himself while being left behind. It might also involve his feelings of abandonment and how he overcomes them.
Well, it could be about Natsu being left behind in Tenrou. Maybe it's a story where his friends accidentally leave him there during some sort of event or mission. It might explore his feelings of isolation and how he tries to find his way back to them.