The change in their dynamic could also be seen in their interactions with other guild members. Natsu would be seen as more of a responsible figure, and Mira would be seen as someone under his protection. This could lead to some interesting scenarios where other guild members have to adjust to this new relationship between Natsu and Mira.
Mira, on the other hand, might become more reliant on Natsu at first. But as time goes on, she would start to assert her own independence. She could challenge Natsu's ideas and they would have healthy debates. This would change their relationship from a simple one of Natsu being in charge to a more equal partnership where they both respect each other's opinions.
One possible plot could be that Natsu, as an adult, takes on the role of a mentor to Mira. He could teach her new magic skills he has learned over the years. For example, he might share his unique fire - based combat techniques, which Mira could then adapt to her own magic style. This could lead to a series of adventures where they face powerful enemies together and Mira grows in strength and confidence under Natsu's guidance.
Their friends would likely be shocked at first. For example, Gray might be initially speechless and then crack some jokes about Natsu finally becoming a family man. Lucy would probably be super excited and offer to help Mira with anything she needs, like shopping for baby clothes or setting up a nursery.
If Natsu goes back in time, his relationships would be very different. With his friends, he might have a new level of understanding. For example, he could see how they grew up and the challenges they faced in the past. He might be more protective of them, especially if he knows what's going to happen in the future. His relationship with Lucy could also change. He could see her in a new light, perhaps realizing things about her that he didn't before when he first met her in the present.
If Natsu travels to a time when Fairy Tail was just starting, he would be more eager to prove himself. His competitive side would be even stronger. In a more distant past, like when dragons were still around, he might be more in awe and a bit more reserved as he encounters these powerful and mysterious creatures. In a future where magic has evolved, he could be a bit out of place at first, but then adapt and become more open - minded to new forms of magic.
It would change it completely. A godlike Naruto would have more power than Kaguya, so she would be in a position of relative weakness for once. This could make her more defensive or even fearful at first.
The power balance would shift. With Wonder Woman's strength, speed, and combat abilities, the Avengers would become an even more formidable force. They might be able to take on tougher enemies more easily.
It would change their dynamic significantly. Usually, Starscream is seen as the scheming second - in - command to the powerful Megatron. But if Megatron is younger, Starscream might feel more entitled to the leadership role. He could be constantly trying to undermine Megatron, seeing him as an inexperienced upstart. Megatron, in turn, would have to work harder to assert his authority and prove that age doesn't equal leadership ability.
It would change the story a great deal. Natsu having a child means there's a new generation to consider. His child could potentially inherit his magic or even have a new and unique magic ability. This could lead to new plotlines where the child is in danger and Natsu has to use all his power to save them. Or perhaps the child could be a key to solving some big mystery in the Fairy Tail world.
Their family dynamic would likely be full of energy. Natsu's exuberance and Erza's strong - willed nature would create a lively household. Natsu would bring a sense of fun and adventure, while Erza would enforce discipline and order when needed.
Their relationship would likely become more tender. Natsu would probably be more protective of Cana, always making sure she's safe and comfortable. Cana, on the other hand, might rely on Natsu more for emotional support.